399048393 has 8 divisors (see below), whose sum is σ = 560068000. Its totient is φ = 252030528.

The previous prime is 399048389. The next prime is 399048407. The reversal of 399048393 is 393840993.

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

It is not a de Polignac number, because 399048393 - 2² = 399048389 is a prime.

It is a super-3 number, since 3×399048393³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (399048343) 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, 3500368 + ... + 3500481.

It is an arithmetic number, because the mean of its divisors is an integer number (70008500).

Almost surely, 2^399048393 is an apocalyptic number.

It is an amenable number.

399048393 is a deficient number, since it is larger than the sum of its proper divisors (161019607).

399048393 is a wasteful number, since it uses less digits than its factorization.

399048393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7000871.

The product of its (nonzero) digits is 629856, while the sum is 48.

The square root of 399048393 is about 19976.1956588335. The cubic root of 399048393 is about 736.2215440743.

The spelling of 399048393 in words is "three hundred ninety-nine million, forty-eight thousand, three hundred ninety-three".