399079000319 has 2 divisors, whose sum is σ = 399079000320. Its totient is φ = 399079000318.

The previous prime is 399079000301. The next prime is 399079000381. The reversal of 399079000319 is 913000970993.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 399079000319 - 2¹² = 399078996223 is a prime.

It is a super-2 number, since 2×399079000319² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (399079000819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199539500159 + 199539500160.

It is an arithmetic number, because the mean of its divisors is an integer number (199539500160).

Almost surely, 2^399079000319 is an apocalyptic number.

399079000319 is a deficient number, since it is larger than the sum of its proper divisors (1).

399079000319 is an equidigital number, since it uses as much as digits as its factorization.

399079000319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 413343, while the sum is 50.

The spelling of 399079000319 in words is "three hundred ninety-nine billion, seventy-nine million, three hundred nineteen", and thus it is an aban number.