8972471838 has 16 divisors (see below), whose sum is σ = 19576302336. Its totient is φ = 2718930840.

The previous prime is 8972471801. The next prime is 8972471861. The reversal of 8972471838 is 8381742798.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67973206 + ... + 67973337.

It is an arithmetic number, because the mean of its divisors is an integer number (1223518896).

Almost surely, 2^8972471838 is an apocalyptic number.

8972471838 is an abundant number, since it is smaller than the sum of its proper divisors (10603830498).

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

8972471838 is a wasteful number, since it uses less digits than its factorization.

8972471838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135946559.

The product of its digits is 5419008, while the sum is 57.

The square root of 8972471838 is about 94723.1325389949. The cubic root of 8972471838 is about 2077.9608836127.

The spelling of 8972471838 in words is "eight billion, nine hundred seventy-two million, four hundred seventy-one thousand, eight hundred thirty-eight".