28323625 has 16 divisors (see below), whose sum is σ = 38563200. Its totient is φ = 20598000.

The previous prime is 28323577. The next prime is 28323629. The reversal of 28323625 is 52632382.

It is not a de Polignac number, because 28323625 - 2¹¹ = 28321577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28323629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8925 + ... + 11674.

It is an arithmetic number, because the mean of its divisors is an integer number (2410200).

Almost surely, 2^28323625 is an apocalyptic number.

28323625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28323625 is a deficient number, since it is larger than the sum of its proper divisors (10239575).

28323625 is a wasteful number, since it uses less digits than its factorization.

28323625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20625 (or 20615 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 28323625 is about 5321.9944569682. The cubic root of 28323625 is about 304.8243187851.

The spelling of 28323625 in words is "twenty-eight million, three hundred twenty-three thousand, six hundred twenty-five".