28976844 has 24 divisors (see below), whose sum is σ = 72814000. Its totient is φ = 8915904.

The previous prime is 28976813. The next prime is 28976851. The reversal of 28976844 is 44867982.

It is a junction number, because it is equal to n+sod(n) for n = 28976793 and 28976802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92719 + ... + 93030.

Almost surely, 2^28976844 is an apocalyptic number.

It is an amenable number.

28976844 is an abundant number, since it is smaller than the sum of its proper divisors (43837156).

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

28976844 is a wasteful number, since it uses less digits than its factorization.

28976844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185769 (or 185767 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 28976844 is about 5383.0143971570. The cubic root of 28976844 is about 307.1498877270.

The spelling of 28976844 in words is "twenty-eight million, nine hundred seventy-six thousand, eight hundred forty-four".