3889368972 has 36 divisors (see below), whose sum is σ = 9998100840. Its totient is φ = 1274481792.

The previous prime is 3889368943. The next prime is 3889368979. The reversal of 3889368972 is 2798639883.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (3889368979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 913453 + ... + 917700.

Almost surely, 2^3889368972 is an apocalyptic number.

It is an amenable number.

3889368972 is an abundant number, since it is smaller than the sum of its proper divisors (6108731868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3889368972 is a wasteful number, since it uses less digits than its factorization.

3889368972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831222 (or 1831217 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The square root of 3889368972 is about 62364.8055556978. The cubic root of 3889368972 is about 1572.6293684486.

The spelling of 3889368972 in words is "three billion, eight hundred eighty-nine million, three hundred sixty-eight thousand, nine hundred seventy-two".