28976456 has 16 divisors (see below), whose sum is σ = 54840240. Its totient is φ = 14352400.

The previous prime is 28976443. The next prime is 28976461. The reversal of 28976456 is 65467982.

It is a self number, because there is not a number n which added to its sum of digits gives 28976456.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16070 + ... + 17781.

It is an arithmetic number, because the mean of its divisors is an integer number (3427515).

Almost surely, 2^28976456 is an apocalyptic number.

It is an amenable number.

28976456 is a deficient number, since it is larger than the sum of its proper divisors (25863784).

28976456 is a wasteful number, since it uses less digits than its factorization.

28976456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33964 (or 33960 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 28976456 is about 5382.9783577495. The cubic root of 28976456 is about 307.1485168083.

The spelling of 28976456 in words is "twenty-eight million, nine hundred seventy-six thousand, four hundred fifty-six".