28957976 has 48 divisors (see below), whose sum is σ = 59070240. Its totient is φ = 13296960.

The previous prime is 28957961. The next prime is 28957991. The reversal of 28957976 is 67975982.

It is an interprime number because it is at equal distance from previous prime (28957961) and next prime (28957991).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106721 + ... + 106991.

It is an arithmetic number, because the mean of its divisors is an integer number (1230630).

Almost surely, 2^28957976 is an apocalyptic number.

It is an amenable number.

28957976 is an abundant number, since it is smaller than the sum of its proper divisors (30112264).

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

28957976 is a wasteful number, since it uses less digits than its factorization.

28957976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 329 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 53.

The square root of 28957976 is about 5381.2615621246. The cubic root of 28957976 is about 307.0832073299.

The spelling of 28957976 in words is "twenty-eight million, nine hundred fifty-seven thousand, nine hundred seventy-six".