399059907 has 8 divisors (see below), whose sum is σ = 560084160. Its totient is φ = 252037800.

The previous prime is 399059897. The next prime is 399059917. The reversal of 399059907 is 709950993.

It is an interprime number because it is at equal distance from previous prime (399059897) and next prime (399059917).

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

It is not a de Polignac number, because 399059907 - 2⁷ = 399059779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 399059907.

It is not an unprimeable number, because it can be changed into a prime (399059917) 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, 3500469 + ... + 3500582.

It is an arithmetic number, because the mean of its divisors is an integer number (70010520).

Almost surely, 2^399059907 is an apocalyptic number.

399059907 is a deficient number, since it is larger than the sum of its proper divisors (161024253).

399059907 is a wasteful number, since it uses less digits than its factorization.

399059907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7001073.

The product of its (nonzero) digits is 688905, while the sum is 51.

The square root of 399059907 is about 19976.4838497670. The cubic root of 399059907 is about 736.2286248974.

The spelling of 399059907 in words is "three hundred ninety-nine million, fifty-nine thousand, nine hundred seven".