28876056 has 32 divisors (see below), whose sum is σ = 78753600. Its totient is φ = 8750240.

The previous prime is 28876049. The next prime is 28876061. The reversal of 28876056 is 65067882.

It is a super-2 number, since 2×28876056² = 1667653220230272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28875999 and 28876017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54426 + ... + 54953.

It is an arithmetic number, because the mean of its divisors is an integer number (2461050).

Almost surely, 2^28876056 is an apocalyptic number.

It is an amenable number.

28876056 is an abundant number, since it is smaller than the sum of its proper divisors (49877544).

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

28876056 is a wasteful number, since it uses less digits than its factorization.

28876056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109399 (or 109395 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 28876056 is about 5373.6445732854. The cubic root of 28876056 is about 306.7933618491.

The spelling of 28876056 in words is "twenty-eight million, eight hundred seventy-six thousand, fifty-six".