398877616 has 20 divisors (see below), whose sum is σ = 776066400. Its totient is φ = 198602432.

The previous prime is 398877607. The next prime is 398877617. The reversal of 398877616 is 616778893.

It is not an unprimeable number, because it can be changed into a prime (398877617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48331 + ... + 55978.

It is an arithmetic number, because the mean of its divisors is an integer number (38803320).

Almost surely, 2^398877616 is an apocalyptic number.

It is an amenable number.

398877616 is a deficient number, since it is larger than the sum of its proper divisors (377188784).

398877616 is a wasteful number, since it uses less digits than its factorization.

398877616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104556 (or 104550 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 55.

The square root of 398877616 is about 19971.9206888071. The cubic root of 398877616 is about 736.1165044777.

The spelling of 398877616 in words is "three hundred ninety-eight million, eight hundred seventy-seven thousand, six hundred sixteen".