399673606 has 8 divisors (see below), whose sum is σ = 601644744. Its totient is φ = 199125360.

The previous prime is 399673601. The next prime is 399673609. The reversal of 399673606 is 606376993.

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

It is a self number, because there is not a number n which added to its sum of digits gives 399673606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399673601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355020 + ... + 356143.

It is an arithmetic number, because the mean of its divisors is an integer number (75205593).

Almost surely, 2^399673606 is an apocalyptic number.

399673606 is a deficient number, since it is larger than the sum of its proper divisors (201971138).

399673606 is a wasteful number, since it uses less digits than its factorization.

399673606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711446.

The product of its (nonzero) digits is 1102248, while the sum is 49.

The square root of 399673606 is about 19991.8384847417. The cubic root of 399673606 is about 736.6058375640.

The spelling of 399673606 in words is "three hundred ninety-nine million, six hundred seventy-three thousand, six hundred six".