399373007 has 8 divisors (see below), whose sum is σ = 450703440. Its totient is φ = 350546560.

The previous prime is 399373003. The next prime is 399373049. The reversal of 399373007 is 700373993.

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 399373007 - 2² = 399373003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399373003) 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, 625658 + ... + 626295.

It is an arithmetic number, because the mean of its divisors is an integer number (56337930).

Almost surely, 2^399373007 is an apocalyptic number.

399373007 is a deficient number, since it is larger than the sum of its proper divisors (51330433).

399373007 is a wasteful number, since it uses less digits than its factorization.

399373007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251993.

The product of its (nonzero) digits is 107163, while the sum is 41.

The square root of 399373007 is about 19984.3190276777. The cubic root of 399373007 is about 736.4211214109.

The spelling of 399373007 in words is "three hundred ninety-nine million, three hundred seventy-three thousand, seven".