399045327 has 4 divisors (see below), whose sum is σ = 532060440. Its totient is φ = 266030216.

The previous prime is 399045323. The next prime is 399045329. The reversal of 399045327 is 723540993.

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 399045327 - 2² = 399045323 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399045323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66507552 + ... + 66507557.

It is an arithmetic number, because the mean of its divisors is an integer number (133015110).

Almost surely, 2^399045327 is an apocalyptic number.

399045327 is a deficient number, since it is larger than the sum of its proper divisors (133015113).

399045327 is a wasteful number, since it uses less digits than its factorization.

399045327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133015112.

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 399045327 is about 19976.1189173473. The cubic root of 399045327 is about 736.2196585377.

The spelling of 399045327 in words is "three hundred ninety-nine million, forty-five thousand, three hundred twenty-seven".