28775976 has 16 divisors (see below), whose sum is σ = 71940000. Its totient is φ = 9591984.

The previous prime is 28775953. The next prime is 28775977. The reversal of 28775976 is 67957782.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28775977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 599476 + ... + 599523.

It is an arithmetic number, because the mean of its divisors is an integer number (4496250).

Almost surely, 2^28775976 is an apocalyptic number.

It is an amenable number.

28775976 is an abundant number, since it is smaller than the sum of its proper divisors (43164024).

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

28775976 is a wasteful number, since it uses less digits than its factorization.

28775976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199008 (or 1199004 counting only the distinct ones).

The product of its digits is 1481760, while the sum is 51.

The square root of 28775976 is about 5364.3243749796. The cubic root of 28775976 is about 306.4385186096.

The spelling of 28775976 in words is "twenty-eight million, seven hundred seventy-five thousand, nine hundred seventy-six".