316986613 has 4 divisors (see below), whose sum is σ = 317127148. Its totient is φ = 316846080.

The previous prime is 316986569. The next prime is 316986629. The reversal of 316986613 is 316689613.

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 52664049 + 264322564 = 7257^2 + 16258^2 .

It is a cyclic number.

It is not a de Polignac number, because 316986613 - 2¹⁷ = 316855541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 316986613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316986643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66828 + ... + 71413.

It is an arithmetic number, because the mean of its divisors is an integer number (79281787).

Almost surely, 2^316986613 is an apocalyptic number.

It is an amenable number.

316986613 is a deficient number, since it is larger than the sum of its proper divisors (140535).

316986613 is a wasteful number, since it uses less digits than its factorization.

316986613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140534.

The product of its digits is 139968, while the sum is 43.

The square root of 316986613 is about 17804.1178663814. The cubic root of 316986613 is about 681.8365958141.

The spelling of 316986613 in words is "three hundred sixteen million, nine hundred eighty-six thousand, six hundred thirteen".