86538165 has 48 divisors (see below), whose sum is σ = 162025920. Its totient is φ = 39325440.

The previous prime is 86538163. The next prime is 86538173. The reversal of 86538165 is 56183568.

It is not a de Polignac number, because 86538165 - 2¹ = 86538163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86538161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 206326 + ... + 206744.

It is an arithmetic number, because the mean of its divisors is an integer number (3375540).

Almost surely, 2^86538165 is an apocalyptic number.

It is an amenable number.

86538165 is a deficient number, since it is larger than the sum of its proper divisors (75487755).

86538165 is a wasteful number, since it uses less digits than its factorization.

86538165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 715 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The square root of 86538165 is about 9302.5891557136. The cubic root of 86538165 is about 442.3193044346.

The spelling of 86538165 in words is "eighty-six million, five hundred thirty-eight thousand, one hundred sixty-five".