28975576 has 32 divisors (see below), whose sum is σ = 64097280. Its totient is φ = 12016800.

The previous prime is 28975567. The next prime is 28975603. The reversal of 28975576 is 67557982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6610 + ... + 10081.

It is an arithmetic number, because the mean of its divisors is an integer number (2003040).

Almost surely, 2^28975576 is an apocalyptic number.

It is an amenable number.

28975576 is an abundant number, since it is smaller than the sum of its proper divisors (35121704).

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

28975576 is a wasteful number, since it uses less digits than its factorization.

28975576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16735 (or 16731 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 49.

The square root of 28975576 is about 5382.8966179930. The cubic root of 28975576 is about 307.1454074629.

The spelling of 28975576 in words is "twenty-eight million, nine hundred seventy-five thousand, five hundred seventy-six".