86164361 has 4 divisors (see below), whose sum is σ = 86186052. Its totient is φ = 86142672.

The previous prime is 86164357. The next prime is 86164363. The reversal of 86164361 is 16346168.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76825225 + 9339136 = 8765^2 + 3056^2 .

It is a cyclic number.

It is not a de Polignac number, because 86164361 - 2² = 86164357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86164363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2990 + ... + 13463.

It is an arithmetic number, because the mean of its divisors is an integer number (21546513).

Almost surely, 2^86164361 is an apocalyptic number.

It is an amenable number.

86164361 is a deficient number, since it is larger than the sum of its proper divisors (21691).

86164361 is a wasteful number, since it uses less digits than its factorization.

86164361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21690.

The product of its digits is 20736, while the sum is 35.

The square root of 86164361 is about 9282.4760166671. The cubic root of 86164361 is about 441.6815150738.

The spelling of 86164361 in words is "eighty-six million, one hundred sixty-four thousand, three hundred sixty-one".