28575104 has 16 divisors (see below), whose sum is σ = 56927220. Its totient is φ = 14287488.

The previous prime is 28575083. The next prime is 28575119. The reversal of 28575104 is 40157582.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×28575104² = 1633073137221632, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 111494 + ... + 111749.

Almost surely, 2^28575104 is an apocalyptic number.

It is an amenable number.

28575104 is a deficient number, since it is larger than the sum of its proper divisors (28352116).

28575104 is an equidigital number, since it uses as much as digits as its factorization.

28575104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223257 (or 223245 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 28575104 is about 5345.5686320540. The cubic root of 28575104 is about 305.7238170460.

The spelling of 28575104 in words is "twenty-eight million, five hundred seventy-five thousand, one hundred four".