316804399 has 2 divisors, whose sum is σ = 316804400. Its totient is φ = 316804398.

The previous prime is 316804391. The next prime is 316804409. The reversal of 316804399 is 993408613.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 316804399 - 2³ = 316804391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316804391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158402199 + 158402200.

It is an arithmetic number, because the mean of its divisors is an integer number (158402200).

Almost surely, 2^316804399 is an apocalyptic number.

316804399 is a deficient number, since it is larger than the sum of its proper divisors (1).

316804399 is an equidigital number, since it uses as much as digits as its factorization.

316804399 is an evil number, because the sum of its binary digits is even.

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

The square root of 316804399 is about 17798.9999438171. Note that the first 4 decimals coincide. The cubic root of 316804399 is about 681.7059236429.

The spelling of 316804399 in words is "three hundred sixteen million, eight hundred four thousand, three hundred ninety-nine".