86518983 has 12 divisors (see below), whose sum is σ = 116862648. Its totient is φ = 56936880.

The previous prime is 86518973. The next prime is 86518997. The reversal of 86518983 is 38981568.

It is not a de Polignac number, because 86518983 - 2⁸ = 86518727 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86518973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16413 + ... + 21033.

It is an arithmetic number, because the mean of its divisors is an integer number (9738554).

Almost surely, 2^86518983 is an apocalyptic number.

86518983 is a deficient number, since it is larger than the sum of its proper divisors (30343665).

86518983 is an equidigital number, since it uses as much as digits as its factorization.

86518983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782 (or 4703 counting only the distinct ones).

The product of its digits is 414720, while the sum is 48.

The square root of 86518983 is about 9301.5580952870. The cubic root of 86518983 is about 442.2866206052.

The spelling of 86518983 in words is "eighty-six million, five hundred eighteen thousand, nine hundred eighty-three".