2856888 has 24 divisors (see below), whose sum is σ = 7737600. Its totient is φ = 952272.

The previous prime is 2856883. The next prime is 2856923. The reversal of 2856888 is 8886582.

2856888 is a `hidden beast` number, since 2 + 8 + 568 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19768 + ... + 19911.

It is an arithmetic number, because the mean of its divisors is an integer number (322400).

2^2856888 is an apocalyptic number.

It is an amenable number.

2856888 is an abundant number, since it is smaller than the sum of its proper divisors (4880712).

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

2856888 is a wasteful number, since it uses less digits than its factorization.

2856888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39691 (or 39684 counting only the distinct ones).

The product of its digits is 245760, while the sum is 45.

The square root of 2856888 is about 1690.2331200163. The cubic root of 2856888 is about 141.8941219609.

The spelling of 2856888 in words is "two million, eight hundred fifty-six thousand, eight hundred eighty-eight".