399204711 has 12 divisors (see below), whose sum is σ = 580839792. Its totient is φ = 264193056.

The previous prime is 399204703. The next prime is 399204719. The reversal of 399204711 is 117402993.

It is an interprime number because it is at equal distance from previous prime (399204703) and next prime (399204719).

It is not a de Polignac number, because 399204711 - 2³ = 399204703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399204719) 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 in 11 ways as a sum of consecutive naturals, for example, 160651 + ... + 163116.

It is an arithmetic number, because the mean of its divisors is an integer number (48403316).

Almost surely, 2^399204711 is an apocalyptic number.

399204711 is a deficient number, since it is larger than the sum of its proper divisors (181635081).

399204711 is a wasteful number, since it uses less digits than its factorization.

399204711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323910 (or 323907 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 399204711 is about 19980.1078825916. The cubic root of 399204711 is about 736.3176641250.

The spelling of 399204711 in words is "three hundred ninety-nine million, two hundred four thousand, seven hundred eleven".