399163486 has 8 divisors (see below), whose sum is σ = 599069520. Its totient is φ = 199473648.

The previous prime is 399163447. The next prime is 399163529. The reversal of 399163486 is 684361993.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49351 + ... + 56866.

It is an arithmetic number, because the mean of its divisors is an integer number (74883690).

Almost surely, 2^399163486 is an apocalyptic number.

399163486 is a deficient number, since it is larger than the sum of its proper divisors (199906034).

399163486 is a wasteful number, since it uses less digits than its factorization.

399163486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108098.

The product of its digits is 839808, while the sum is 49.

The square root of 399163486 is about 19979.0762048699. The cubic root of 399163486 is about 736.2923172793.

The spelling of 399163486 in words is "three hundred ninety-nine million, one hundred sixty-three thousand, four hundred eighty-six".