28969508 has 12 divisors (see below), whose sum is σ = 50736000. Its totient is φ = 14473512.

The previous prime is 28969477. The next prime is 28969511. The reversal of 28969508 is 80596982.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6185 + ... + 9807.

It is an arithmetic number, because the mean of its divisors is an integer number (4228000).

Almost surely, 2^28969508 is an apocalyptic number.

It is an amenable number.

28969508 is a deficient number, since it is larger than the sum of its proper divisors (21766492).

28969508 is a wasteful number, since it uses less digits than its factorization.

28969508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5626 (or 5624 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 28969508 is about 5382.3329514254. The cubic root of 28969508 is about 307.1239653991.

The spelling of 28969508 in words is "twenty-eight million, nine hundred sixty-nine thousand, five hundred eight".