86618313 has 24 divisors (see below), whose sum is σ = 128169600. Its totient is φ = 56350944.

The previous prime is 86618303. The next prime is 86618317. The reversal of 86618313 is 31381668.

86618313 is a `hidden beast` number, since 8 + 6 + 618 + 31 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-86618313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86618317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82848 + ... + 83886.

It is an arithmetic number, because the mean of its divisors is an integer number (5340400).

Almost surely, 2^86618313 is an apocalyptic number.

It is an amenable number.

86618313 is a deficient number, since it is larger than the sum of its proper divisors (41551287).

86618313 is a wasteful number, since it uses less digits than its factorization.

86618313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261 (or 1258 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 86618313 is about 9306.8959916827. The cubic root of 86618313 is about 442.4558147971.

The spelling of 86618313 in words is "eighty-six million, six hundred eighteen thousand, three hundred thirteen".