28731162 has 16 divisors (see below), whose sum is σ = 57516192. Its totient is φ = 9568080.

The previous prime is 28731137. The next prime is 28731179. The reversal of 28731162 is 26113782.

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, 9112 + ... + 11852.

It is an arithmetic number, because the mean of its divisors is an integer number (3594762).

Almost surely, 2^28731162 is an apocalyptic number.

28731162 is an abundant number, since it is smaller than the sum of its proper divisors (28785030).

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

28731162 is a wasteful number, since it uses less digits than its factorization.

28731162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4493.

The product of its digits is 4032, while the sum is 30.

The square root of 28731162 is about 5360.1457069748. The cubic root of 28731162 is about 306.2793595621.

The spelling of 28731162 in words is "twenty-eight million, seven hundred thirty-one thousand, one hundred sixty-two".