399485393 has 8 divisors (see below), whose sum is σ = 422275200. Its totient is φ = 376872048.

The previous prime is 399485389. The next prime is 399485399. The reversal of 399485393 is 393584993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 399485393 - 2² = 399485389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (399485399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39446 + ... + 48527.

It is an arithmetic number, because the mean of its divisors is an integer number (52784400).

Almost surely, 2^399485393 is an apocalyptic number.

It is an amenable number.

399485393 is a deficient number, since it is larger than the sum of its proper divisors (22789807).

399485393 is a wasteful number, since it uses less digits than its factorization.

399485393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88231.

The product of its digits is 3149280, while the sum is 53.

The square root of 399485393 is about 19987.1306845180. The cubic root of 399485393 is about 736.4901927307.

The spelling of 399485393 in words is "three hundred ninety-nine million, four hundred eighty-five thousand, three hundred ninety-three".