28577104 has 20 divisors (see below), whose sum is σ = 55776564. Its totient is φ = 14183168.

The previous prime is 28577089. The next prime is 28577111. The reversal of 28577104 is 40177582.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18079504 + 10497600 = 4252^2 + 3240^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28577104.

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, 4327 + ... + 8710.

Almost surely, 2^28577104 is an apocalyptic number.

It is an amenable number.

28577104 is a deficient number, since it is larger than the sum of its proper divisors (27199460).

28577104 is a wasteful number, since it uses less digits than its factorization.

28577104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13182 (or 13176 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 28577104 is about 5345.7556996182. The cubic root of 28577104 is about 305.7309495178.

The spelling of 28577104 in words is "twenty-eight million, five hundred seventy-seven thousand, one hundred four".