399055323 has 16 divisors (see below), whose sum is σ = 551577600. Its totient is φ = 256419936.

The previous prime is 399055301. The next prime is 399055357. The reversal of 399055323 is 323550993.

It is not a de Polignac number, because 399055323 - 2⁶ = 399055259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (399055373) 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 15 ways as a sum of consecutive naturals, for example, 4923 + ... + 28676.

It is an arithmetic number, because the mean of its divisors is an integer number (34473600).

Almost surely, 2^399055323 is an apocalyptic number.

399055323 is a deficient number, since it is larger than the sum of its proper divisors (152522277).

399055323 is a wasteful number, since it uses less digits than its factorization.

399055323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33746.

The product of its (nonzero) digits is 109350, while the sum is 39.

The square root of 399055323 is about 19976.3691145313. The cubic root of 399055323 is about 736.2258058680.

The spelling of 399055323 in words is "three hundred ninety-nine million, fifty-five thousand, three hundred twenty-three".