399897116 has 6 divisors (see below), whose sum is σ = 699819960. Its totient is φ = 199948556.

The previous prime is 399897101. The next prime is 399897133. The reversal of 399897116 is 611798993.

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 as a sum of consecutive naturals, namely, 49987136 + ... + 49987143.

It is an arithmetic number, because the mean of its divisors is an integer number (116636660).

Almost surely, 2^399897116 is an apocalyptic number.

It is an amenable number.

399897116 is a deficient number, since it is larger than the sum of its proper divisors (299922844).

399897116 is a wasteful number, since it uses less digits than its factorization.

399897116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99974283 (or 99974281 counting only the distinct ones).

The product of its digits is 734832, while the sum is 53.

The square root of 399897116 is about 19997.4277345863. The cubic root of 399897116 is about 736.7431229951.

The spelling of 399897116 in words is "three hundred ninety-nine million, eight hundred ninety-seven thousand, one hundred sixteen".