3898319972 has 24 divisors (see below), whose sum is σ = 7059175200. Its totient is φ = 1882431936.

The previous prime is 3898319959. The next prime is 3898319977. The reversal of 3898319972 is 2799138983.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3898319977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112022 + ... + 142637.

It is an arithmetic number, because the mean of its divisors is an integer number (294132300).

Almost surely, 2^3898319972 is an apocalyptic number.

It is an amenable number.

3898319972 is a deficient number, since it is larger than the sum of its proper divisors (3160855228).

3898319972 is a wasteful number, since it uses less digits than its factorization.

3898319972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254795 (or 254793 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 59.

The square root of 3898319972 is about 62436.5275459806. The cubic root of 3898319972 is about 1573.8348613982.

The spelling of 3898319972 in words is "three billion, eight hundred ninety-eight million, three hundred nineteen thousand, nine hundred seventy-two".