2739856 has 40 divisors (see below), whose sum is σ = 6428160. Its totient is φ = 1104384.

The previous prime is 2739853. The next prime is 2739859. The reversal of 2739856 is 6589372.

It is an interprime number because it is at equal distance from previous prime (2739853) and next prime (2739859).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 2¹⁹ + 7⁶ + 3³ + 9³ + 8⁷ + 5 + 6 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2739853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1185 + ... + 2623.

It is an arithmetic number, because the mean of its divisors is an integer number (160704).

2^2739856 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 2739856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3214080).

2739856 is an abundant number, since it is smaller than the sum of its proper divisors (3688304).

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

2739856 is a wasteful number, since it uses less digits than its factorization.

2739856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471 (or 1465 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 2739856 is about 1655.2510383625. The cubic root of 2739856 is about 139.9294883019.

The spelling of 2739856 in words is "two million, seven hundred thirty-nine thousand, eight hundred fifty-six".