3898816972 has 6 divisors (see below), whose sum is σ = 6822929708. Its totient is φ = 1949408484.

The previous prime is 3898816951. The next prime is 3898817003. The reversal of 3898816972 is 2796188983.

3898816972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3898816972.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487352118 + ... + 487352125.

Almost surely, 2^3898816972 is an apocalyptic number.

It is an amenable number.

3898816972 is a deficient number, since it is larger than the sum of its proper divisors (2924112736).

3898816972 is a wasteful number, since it uses less digits than its factorization.

3898816972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974704247 (or 974704245 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 61.

The square root of 3898816972 is about 62440.5074611025. The cubic root of 3898816972 is about 1573.9017417204.

The spelling of 3898816972 in words is "three billion, eight hundred ninety-eight million, eight hundred sixteen thousand, nine hundred seventy-two".