87865365 has 32 divisors (see below), whose sum is σ = 161095680. Its totient is φ = 40060224.

The previous prime is 87865363. The next prime is 87865369. The reversal of 87865365 is 56356878.

It is not a de Polignac number, because 87865365 - 2¹ = 87865363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87865363) 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 31 ways as a sum of consecutive naturals, for example, 49422 + ... + 51168.

It is an arithmetic number, because the mean of its divisors is an integer number (5034240).

Almost surely, 2^87865365 is an apocalyptic number.

It is an amenable number.

87865365 is a deficient number, since it is larger than the sum of its proper divisors (73230315).

87865365 is a wasteful number, since it uses less digits than its factorization.

87865365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241.

The product of its digits is 1209600, while the sum is 48.

The square root of 87865365 is about 9373.6527031889. The cubic root of 87865365 is about 444.5690647875.

The spelling of 87865365 in words is "eighty-seven million, eight hundred sixty-five thousand, three hundred sixty-five".