28752165 has 80 divisors (see below), whose sum is σ = 57243648. Its totient is φ = 13716864.

The previous prime is 28752131. The next prime is 28752173. The reversal of 28752165 is 56125782.

It is a happy number.

It is not a de Polignac number, because 28752165 - 2⁷ = 28752037 is a prime.

Its product of digits (33600) is a multiple of the sum of its prime factors (200).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 226332 + ... + 226458.

Almost surely, 2^28752165 is an apocalyptic number.

It is an amenable number.

28752165 is a deficient number, since it is larger than the sum of its proper divisors (28491483).

28752165 is a wasteful number, since it uses less digits than its factorization.

28752165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 191 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 28752165 is about 5362.1045308722. The cubic root of 28752165 is about 306.3539733041.

The spelling of 28752165 in words is "twenty-eight million, seven hundred fifty-two thousand, one hundred sixty-five".