2783772 has 36 divisors (see below), whose sum is σ = 7174440. Its totient is φ = 909792.

The previous prime is 2783771. The next prime is 2783773. The reversal of 2783772 is 2773872.

2783772 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 (2783771) and next prime (2783773).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 2¹⁴ + 7³ + 8⁴ + 3¹³ + 7⁴ + 7⁶ + 2²⁰ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2783771) 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 11 ways as a sum of consecutive naturals, for example, 1179 + ... + 2637.

It is an arithmetic number, because the mean of its divisors is an integer number (199290).

2^2783772 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 2783772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3587220).

2783772 is an abundant number, since it is smaller than the sum of its proper divisors (4390668).

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

2783772 is a wasteful number, since it uses less digits than its factorization.

2783772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522 (or 1517 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 2783772 is about 1668.4639642498. The cubic root of 2783772 is about 140.6731526949.

The spelling of 2783772 in words is "two million, seven hundred eighty-three thousand, seven hundred seventy-two".