28513179 has 12 divisors (see below), whose sum is σ = 41460432. Its totient is φ = 18882000.

The previous prime is 28513157. The next prime is 28513187. The reversal of 28513179 is 97131582.

It is not a de Polignac number, because 28513179 - 2⁸ = 28512923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28513109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9132 + ... + 11849.

It is an arithmetic number, because the mean of its divisors is an integer number (3455036).

Almost surely, 2^28513179 is an apocalyptic number.

28513179 is a deficient number, since it is larger than the sum of its proper divisors (12947253).

28513179 is a wasteful number, since it uses less digits than its factorization.

28513179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21138 (or 21135 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 28513179 is about 5339.7733097951. The cubic root of 28513179 is about 305.5028130135.

The spelling of 28513179 in words is "twenty-eight million, five hundred thirteen thousand, one hundred seventy-nine".