2723556 has 48 divisors (see below), whose sum is σ = 7096320. Its totient is φ = 805920.

The previous prime is 2723551. The next prime is 2723561. The reversal of 2723556 is 6553272.

2723556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2723551) and next prime (2723561).

It is a d-powerful number, because it can be written as 2⁹ + 7 + 2¹⁸ + 3³ + 5⁸ + 5⁸ + 6⁸ .

Its product of digits (12600) is a multiple of the sum of its prime factors (504).

It is not an unprimeable number, because it can be changed into a prime (2723551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5985 + ... + 6423.

It is an arithmetic number, because the mean of its divisors is an integer number (147840).

2^2723556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2723556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3548160).

2723556 is an abundant number, since it is smaller than the sum of its proper divisors (4372764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2723556 is a wasteful number, since it uses less digits than its factorization.

2723556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 502 counting only the distinct ones).

The product of its digits is 12600, while the sum is 30.

The square root of 2723556 is about 1650.3199689757. The cubic root of 2723556 is about 139.6514458597.

Subtracting from 2723556 its product of digits (12600), we obtain a triangular number (2710956 = T₂₃₂₈).

It can be divided in two parts, 272 and 3556, that added together give a triangular number (3828 = T₈₇).

The spelling of 2723556 in words is "two million, seven hundred twenty-three thousand, five hundred fifty-six".