28175072 has 24 divisors (see below), whose sum is σ = 56255472. Its totient is φ = 13888000.

The previous prime is 28175047. The next prime is 28175089. The reversal of 28175072 is 27057182.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 3929 + ... + 8472.

It is an arithmetic number, because the mean of its divisors is an integer number (2343978).

Almost surely, 2^28175072 is an apocalyptic number.

It is an amenable number.

28175072 is a deficient number, since it is larger than the sum of its proper divisors (28080400).

28175072 is a wasteful number, since it uses less digits than its factorization.

28175072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12482 (or 12474 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 28175072 is about 5308.0195930309. The cubic root of 28175072 is about 304.2904656833.

The spelling of 28175072 in words is "twenty-eight million, one hundred seventy-five thousand, seventy-two".