399160787 has 8 divisors (see below), whose sum is σ = 412492080. Its totient is φ = 386013600.

The previous prime is 399160771. The next prime is 399160813. The reversal of 399160787 is 787061993.

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 399160787 - 2⁴ = 399160771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (399160087) 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, 41612 + ... + 50297.

It is an arithmetic number, because the mean of its divisors is an integer number (51561510).

Almost surely, 2^399160787 is an apocalyptic number.

399160787 is a deficient number, since it is larger than the sum of its proper divisors (13331293).

399160787 is a wasteful number, since it uses less digits than its factorization.

399160787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92053.

The product of its (nonzero) digits is 571536, while the sum is 50.

The square root of 399160787 is about 19979.0086590902. The cubic root of 399160787 is about 736.2906577609.

The spelling of 399160787 in words is "three hundred ninety-nine million, one hundred sixty thousand, seven hundred eighty-seven".