2656885 has 32 divisors (see below), whose sum is σ = 4073472. Its totient is φ = 1615680.

The previous prime is 2656883. The next prime is 2656889. The reversal of 2656885 is 5886562.

It is not a de Polignac number, because 2656885 - 2¹ = 2656883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25744 + ... + 25846.

It is an arithmetic number, because the mean of its divisors is an integer number (127296).

2^2656885 is an apocalyptic number.

It is an amenable number.

2656885 is a deficient number, since it is larger than the sum of its proper divisors (1416587).

2656885 is a wasteful number, since it uses less digits than its factorization.

2656885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193.

The product of its digits is 115200, while the sum is 40.

The square root of 2656885 is about 1629.9953987665. The cubic root of 2656885 is about 138.5024914078.

The spelling of 2656885 in words is "two million, six hundred fifty-six thousand, eight hundred eighty-five".