399798908 has 12 divisors (see below), whose sum is σ = 703312512. Its totient is φ = 198852480.

The previous prime is 399798899. The next prime is 399798923. The reversal of 399798908 is 809897993.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260885 + ... + 262412.

It is an arithmetic number, because the mean of its divisors is an integer number (58609376).

Almost surely, 2^399798908 is an apocalyptic number.

It is an amenable number.

399798908 is a deficient number, since it is larger than the sum of its proper divisors (303513604).

399798908 is a wasteful number, since it uses less digits than its factorization.

399798908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523492 (or 523490 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 62.

The square root of 399798908 is about 19994.9720679975. The cubic root of 399798908 is about 736.6828074877.

The spelling of 399798908 in words is "three hundred ninety-nine million, seven hundred ninety-eight thousand, nine hundred eight".