318764923 has 2 divisors, whose sum is σ = 318764924. Its totient is φ = 318764922.

The previous prime is 318764911. The next prime is 318764969. The reversal of 318764923 is 329467813.

It is a weak prime.

It is an emirp because it is prime and its reverse (329467813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 318764923 - 2¹³ = 318756731 is a prime.

It is a super-2 number, since 2×318764923² = 203222152270391858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 318764923.

It is not a weakly prime, because it can be changed into another prime (318764023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159382461 + 159382462.

It is an arithmetic number, because the mean of its divisors is an integer number (159382462).

Almost surely, 2^318764923 is an apocalyptic number.

318764923 is a deficient number, since it is larger than the sum of its proper divisors (1).

318764923 is an equidigital number, since it uses as much as digits as its factorization.

318764923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 43.

The square root of 318764923 is about 17853.9889940596. The cubic root of 318764923 is about 683.1092641244.

The spelling of 318764923 in words is "three hundred eighteen million, seven hundred sixty-four thousand, nine hundred twenty-three".