28174864 has 15 divisors (see below), whose sum is σ = 54629967. Its totient is φ = 14076816.

The previous prime is 28174849. The next prime is 28174873. The reversal of 28174864 is 46847182.

The square root of 28174864 is 5308.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×28174864² = 1587645922836992, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 20569 + ... + 21895.

Almost surely, 2^28174864 is an apocalyptic number.

28174864 is the 5308-th square number.

It is an amenable number.

28174864 is a deficient number, since it is larger than the sum of its proper divisors (26455103).

28174864 is an frugal number, since it uses more digits than its factorization.

28174864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662 (or 1329 counting only the distinct ones).

The product of its digits is 86016, while the sum is 40.

The cubic root of 28174864 is about 304.2897168822.

The spelling of 28174864 in words is "twenty-eight million, one hundred seventy-four thousand, eight hundred sixty-four".