399314347 has 2 divisors, whose sum is σ = 399314348. Its totient is φ = 399314346.

The previous prime is 399314329. The next prime is 399314353. The reversal of 399314347 is 743413993.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 399314347 - 2⁷ = 399314219 is a prime.

It is not a weakly prime, because it can be changed into another prime (399314387) by changing a digit.

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 as a sum of consecutive naturals, namely, 199657173 + 199657174.

It is an arithmetic number, because the mean of its divisors is an integer number (199657174).

Almost surely, 2^399314347 is an apocalyptic number.

399314347 is a deficient number, since it is larger than the sum of its proper divisors (1).

399314347 is an equidigital number, since it uses as much as digits as its factorization.

399314347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 43.

The square root of 399314347 is about 19982.8513230720. The cubic root of 399314347 is about 736.3850644104.

The spelling of 399314347 in words is "three hundred ninety-nine million, three hundred fourteen thousand, three hundred forty-seven".