28700024 has 16 divisors (see below), whose sum is σ = 55668600. Its totient is φ = 13855072.

The previous prime is 28699997. The next prime is 28700081. The reversal of 28700024 is 42000782.

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, 61622 + ... + 62085.

Almost surely, 2^28700024 is an apocalyptic number.

It is an amenable number.

28700024 is a deficient number, since it is larger than the sum of its proper divisors (26968576).

28700024 is a wasteful number, since it uses less digits than its factorization.

28700024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123742 (or 123738 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 28700024 is about 5357.2403343513. The cubic root of 28700024 is about 306.1686740045.

The spelling of 28700024 in words is "twenty-eight million, seven hundred thousand, twenty-four".