28862656 has 28 divisors (see below), whose sum is σ = 59253120. Its totient is φ = 13932800.

The previous prime is 28862609. The next prime is 28862663. The reversal of 28862656 is 65626882.

It is a super-2 number, since 2×28862656² = 1666105822748672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5920 + ... + 9631.

Almost surely, 2^28862656 is an apocalyptic number.

It is an amenable number.

28862656 is an abundant number, since it is smaller than the sum of its proper divisors (30390464).

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

28862656 is a wasteful number, since it uses less digits than its factorization.

28862656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15592 (or 15582 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 28862656 is about 5372.3976025607. The cubic root of 28862656 is about 306.7458984522.

The spelling of 28862656 in words is "twenty-eight million, eight hundred sixty-two thousand, six hundred fifty-six".