28672592 has 20 divisors (see below), whose sum is σ = 59826900. Its totient is φ = 13233408.

The previous prime is 28672573. The next prime is 28672601. The reversal of 28672592 is 29527682.

It can be written as a sum of positive squares in 2 ways, for example, as 14714896 + 13957696 = 3836^2 + 3736^2 .

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, 68717 + ... + 69132.

It is an arithmetic number, because the mean of its divisors is an integer number (2991345).

Almost surely, 2^28672592 is an apocalyptic number.

It is an amenable number.

28672592 is an abundant number, since it is smaller than the sum of its proper divisors (31154308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28672592 is a wasteful number, since it uses less digits than its factorization.

28672592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137870 (or 137864 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 28672592 is about 5354.6794488559. The cubic root of 28672592 is about 306.0710957307.

The spelling of 28672592 in words is "twenty-eight million, six hundred seventy-two thousand, five hundred ninety-two".