2879864 has 16 divisors (see below), whose sum is σ = 5815320. Its totient is φ = 1329120.

The previous prime is 2879857. The next prime is 2879873. The reversal of 2879864 is 4689782.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13742 + ... + 13949.

2^2879864 is an apocalyptic number.

It is an amenable number.

2879864 is an abundant number, since it is smaller than the sum of its proper divisors (2935456).

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

2879864 is a wasteful number, since it uses less digits than its factorization.

2879864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27710 (or 27706 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 2879864 is about 1697.0162049904. The cubic root of 2879864 is about 142.2734926189.

The spelling of 2879864 in words is "two million, eight hundred seventy-nine thousand, eight hundred sixty-four".