28750712 has 16 divisors (see below), whose sum is σ = 54403800. Its totient is φ = 14243040.

The previous prime is 28750679. The next prime is 28750727. The reversal of 28750712 is 21705782.

It is a congruent number.

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, 15614 + ... + 17357.

Almost surely, 2^28750712 is an apocalyptic number.

It is an amenable number.

28750712 is a deficient number, since it is larger than the sum of its proper divisors (25653088).

28750712 is a wasteful number, since it uses less digits than its factorization.

28750712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33086 (or 33082 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 28750712 is about 5361.9690413131. The cubic root of 28750712 is about 306.3488126513.

The spelling of 28750712 in words is "twenty-eight million, seven hundred fifty thousand, seven hundred twelve".