28937325 has 12 divisors (see below), whose sum is σ = 47843168. Its totient is φ = 15433200.

The previous prime is 28937303. The next prime is 28937327. The reversal of 28937325 is 52373982.

It is not a de Polignac number, because 28937325 - 2⁶ = 28937261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28937327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192841 + ... + 192990.

Almost surely, 2^28937325 is an apocalyptic number.

28937325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28937325 is a deficient number, since it is larger than the sum of its proper divisors (18905843).

28937325 is a wasteful number, since it uses less digits than its factorization.

28937325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385844 (or 385839 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 28937325 is about 5379.3424319335. The cubic root of 28937325 is about 307.0101925195.

The spelling of 28937325 in words is "twenty-eight million, nine hundred thirty-seven thousand, three hundred twenty-five".