28485165 has 24 divisors (see below), whose sum is σ = 46280160. Its totient is φ = 14960544.

The previous prime is 28485157. The next prime is 28485169. The reversal of 28485165 is 56158482.

It is not a de Polignac number, because 28485165 - 2³ = 28485157 is a prime.

It is a super-2 number, since 2×28485165² = 1622809250154450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28485169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159046 + ... + 159224.

It is an arithmetic number, because the mean of its divisors is an integer number (1928340).

Almost surely, 2^28485165 is an apocalyptic number.

It is an amenable number.

28485165 is a deficient number, since it is larger than the sum of its proper divisors (17794995).

28485165 is a wasteful number, since it uses less digits than its factorization.

28485165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 290 counting only the distinct ones).

The product of its digits is 76800, while the sum is 39.

The square root of 28485165 is about 5337.1495201090. The cubic root of 28485165 is about 305.4027287661.

The spelling of 28485165 in words is "twenty-eight million, four hundred eighty-five thousand, one hundred sixty-five".