28468625 has 16 divisors (see below), whose sum is σ = 37621584. Its totient is φ = 21433600.

The previous prime is 28468619. The next prime is 28468679. The reversal of 28468625 is 52686482.

It can be written as a sum of positive squares in 8 ways, for example, as 13476241 + 14992384 = 3671^2 + 3872^2 .

It is not a de Polignac number, because 28468625 - 2⁸ = 28468369 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4574 + ... + 8823.

It is an arithmetic number, because the mean of its divisors is an integer number (2351349).

Almost surely, 2^28468625 is an apocalyptic number.

28468625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28468625 is a deficient number, since it is larger than the sum of its proper divisors (9152959).

28468625 is a wasteful number, since it uses less digits than its factorization.

28468625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13429 (or 13419 counting only the distinct ones).

The product of its digits is 184320, while the sum is 41.

The square root of 28468625 is about 5335.5997788440. The cubic root of 28468625 is about 305.3436063054.

The spelling of 28468625 in words is "twenty-eight million, four hundred sixty-eight thousand, six hundred twenty-five".