28979164 has 6 divisors (see below), whose sum is σ = 50713544. Its totient is φ = 14489580.

The previous prime is 28979129. The next prime is 28979173. The reversal of 28979164 is 46197982.

It is a super-2 number, since 2×28979164² = 1679583892277792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3622392 + ... + 3622399.

Almost surely, 2^28979164 is an apocalyptic number.

It is an amenable number.

28979164 is a deficient number, since it is larger than the sum of its proper divisors (21734380).

28979164 is a wasteful number, since it uses less digits than its factorization.

28979164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7244795 (or 7244793 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 28979164 is about 5383.2298854870. The cubic root of 28979164 is about 307.1580847172.

The spelling of 28979164 in words is "twenty-eight million, nine hundred seventy-nine thousand, one hundred sixty-four".