399507327 has 12 divisors (see below), whose sum is σ = 611011440. Its totient is φ = 250671168.

The previous prime is 399507313. The next prime is 399507331. The reversal of 399507327 is 723705993.

It is not a de Polignac number, because 399507327 - 2⁸ = 399507071 is a prime.

It is a super-2 number, since 2×399507327² = 319212208653369858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399507307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1305427 + ... + 1305732.

It is an arithmetic number, because the mean of its divisors is an integer number (50917620).

Almost surely, 2^399507327 is an apocalyptic number.

399507327 is a deficient number, since it is larger than the sum of its proper divisors (211504113).

399507327 is a wasteful number, since it uses less digits than its factorization.

399507327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2611182 (or 2611179 counting only the distinct ones).

The product of its (nonzero) digits is 357210, while the sum is 45.

The square root of 399507327 is about 19987.6793800581. The cubic root of 399507327 is about 736.5036716384.

The spelling of 399507327 in words is "three hundred ninety-nine million, five hundred seven thousand, three hundred twenty-seven".