318920827 has 2 divisors, whose sum is σ = 318920828. Its totient is φ = 318920826.

The previous prime is 318920821. The next prime is 318920863. The reversal of 318920827 is 728029813.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 318920827 - 2¹¹ = 318918779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 318920827.

It is not a weakly prime, because it can be changed into another prime (318920821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159460413 + 159460414.

It is an arithmetic number, because the mean of its divisors is an integer number (159460414).

Almost surely, 2^318920827 is an apocalyptic number.

318920827 is a deficient number, since it is larger than the sum of its proper divisors (1).

318920827 is an equidigital number, since it uses as much as digits as its factorization.

318920827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 318920827 is about 17858.3545434623. The cubic root of 318920827 is about 683.2206127508.

The spelling of 318920827 in words is "three hundred eighteen million, nine hundred twenty thousand, eight hundred twenty-seven".