399219563 has 8 divisors (see below), whose sum is σ = 406160016. Its totient is φ = 392292000.

The previous prime is 399219559. The next prime is 399219577. The reversal of 399219563 is 365912993.

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 399219563 - 2² = 399219559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (399219503) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 75713 + ... + 80813.

It is an arithmetic number, because the mean of its divisors is an integer number (50770002).

Almost surely, 2^399219563 is an apocalyptic number.

399219563 is a deficient number, since it is larger than the sum of its proper divisors (6940453).

399219563 is a wasteful number, since it uses less digits than its factorization.

399219563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6445.

The product of its digits is 393660, while the sum is 47.

The square root of 399219563 is about 19980.4795487996. The cubic root of 399219563 is about 736.3267953251.

The spelling of 399219563 in words is "three hundred ninety-nine million, two hundred nineteen thousand, five hundred sixty-three".