399089086 has 8 divisors (see below), whose sum is σ = 653054904. Its totient is φ = 181404120.

The previous prime is 399089069. The next prime is 399089111. The reversal of 399089086 is 680980993.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9070185 + ... + 9070228.

It is an arithmetic number, because the mean of its divisors is an integer number (81631863).

Almost surely, 2^399089086 is an apocalyptic number.

399089086 is a deficient number, since it is larger than the sum of its proper divisors (253965818).

399089086 is a wasteful number, since it uses less digits than its factorization.

399089086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18140426.

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 399089086 is about 19977.2141701489. The cubic root of 399089086 is about 736.2465686457.

The spelling of 399089086 in words is "three hundred ninety-nine million, eighty-nine thousand, eighty-six".