318473685 has 24 divisors (see below), whose sum is σ = 552809400. Its totient is φ = 169610112.

The previous prime is 318473677. The next prime is 318473711. The reversal of 318473685 is 586374813.

It can be written as a sum of positive squares in 4 ways, for example, as 97594641 + 220879044 = 9879^2 + 14862^2 .

It is not a de Polignac number, because 318473685 - 2³ = 318473677 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 318473685.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29391 + ... + 38739.

It is an arithmetic number, because the mean of its divisors is an integer number (23033725).

Almost surely, 2^318473685 is an apocalyptic number.

It is an amenable number.

318473685 is a deficient number, since it is larger than the sum of its proper divisors (234335715).

318473685 is a wasteful number, since it uses less digits than its factorization.

318473685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10117 (or 10114 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 318473685 is about 17845.8310257606. The cubic root of 318473685 is about 682.9011609305.

The spelling of 318473685 in words is "three hundred eighteen million, four hundred seventy-three thousand, six hundred eighty-five".