86307861 has 16 divisors (see below), whose sum is σ = 128260800. Its totient is φ = 51303168.

The previous prime is 86307817. The next prime is 86307877. The reversal of 86307861 is 16870368.

It is not a de Polignac number, because 86307861 - 2⁷ = 86307733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86307061) 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, 43566 + ... + 45503.

It is an arithmetic number, because the mean of its divisors is an integer number (8016300).

Almost surely, 2^86307861 is an apocalyptic number.

It is an amenable number.

86307861 is a deficient number, since it is larger than the sum of its proper divisors (41952939).

86307861 is a wasteful number, since it uses less digits than its factorization.

86307861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89108.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 86307861 is about 9290.2024197538. The cubic root of 86307861 is about 441.9265744141.

The spelling of 86307861 in words is "eighty-six million, three hundred seven thousand, eight hundred sixty-one".