36515865 has 16 divisors (see below), whose sum is σ = 58507200. Its totient is φ = 19447872.

The previous prime is 36515863. The next prime is 36515879. The reversal of 36515865 is 56851563.

It is not a de Polignac number, because 36515865 - 2¹ = 36515863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36515863) 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, 14091 + ... + 16479.

It is an arithmetic number, because the mean of its divisors is an integer number (3656700).

Almost surely, 2^36515865 is an apocalyptic number.

It is an amenable number.

36515865 is a deficient number, since it is larger than the sum of its proper divisors (21991335).

36515865 is a wasteful number, since it uses less digits than its factorization.

36515865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3416.

The product of its digits is 108000, while the sum is 39.

The square root of 36515865 is about 6042.8358408946. The cubic root of 36515865 is about 331.7624255987.

The spelling of 36515865 in words is "thirty-six million, five hundred fifteen thousand, eight hundred sixty-five".