399189063 has 32 divisors (see below), whose sum is σ = 665846272. Its totient is φ = 207100800.

The previous prime is 399189061. The next prime is 399189097. The reversal of 399189063 is 360981993.

It is a happy number.

It is not a de Polignac number, because 399189063 - 2¹ = 399189061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399189061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4668 + ... + 28638.

It is an arithmetic number, because the mean of its divisors is an integer number (20807696).

Almost surely, 2^399189063 is an apocalyptic number.

399189063 is a deficient number, since it is larger than the sum of its proper divisors (266657209).

399189063 is a wasteful number, since it uses less digits than its factorization.

399189063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24055.

The product of its (nonzero) digits is 314928, while the sum is 48.

The square root of 399189063 is about 19979.7162892770. The cubic root of 399189063 is about 736.3080432888.

The spelling of 399189063 in words is "three hundred ninety-nine million, one hundred eighty-nine thousand, sixty-three".