399327 has 4 divisors (see below), whose sum is σ = 532440. Its totient is φ = 266216.

The previous prime is 399283. The next prime is 399353. The reversal of 399327 is 723993.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 399327 - 2⁶ = 399263 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66552 + ... + 66557.

It is an arithmetic number, because the mean of its divisors is an integer number (133110).

2³⁹⁹³²⁷ is an apocalyptic number.

399327 is a deficient number, since it is larger than the sum of its proper divisors (133113).

399327 is a wasteful number, since it uses less digits than its factorization.

399327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133112.

The product of its digits is 10206, while the sum is 33.

The square root of 399327 is about 631.9232548340. The cubic root of 399327 is about 73.6392842227.

The spelling of 399327 in words is "three hundred ninety-nine thousand, three hundred twenty-seven".