28556976 has 40 divisors (see below), whose sum is σ = 84312064. Its totient is φ = 8159040.

The previous prime is 28556971. The next prime is 28556977. The reversal of 28556976 is 67965582.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (28556971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42160 + ... + 42831.

Almost surely, 2^28556976 is an apocalyptic number.

It is an amenable number.

28556976 is an abundant number, since it is smaller than the sum of its proper divisors (55755088).

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

28556976 is a wasteful number, since it uses less digits than its factorization.

28556976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85009 (or 85003 counting only the distinct ones).

The product of its digits is 907200, while the sum is 48.

The square root of 28556976 is about 5343.8727529761. The cubic root of 28556976 is about 305.6591531373.

The spelling of 28556976 in words is "twenty-eight million, five hundred fifty-six thousand, nine hundred seventy-six".