8899120971 has 112 divisors (see below), whose sum is σ = 15141635040. Its totient is φ = 5190013440.

The previous prime is 8899120961. The next prime is 8899120973. The reversal of 8899120971 is 1790219988.

It is not a de Polignac number, because 8899120971 - 2⁵ = 8899120939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8899120973) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 14376300 + ... + 14376918.

It is an arithmetic number, because the mean of its divisors is an integer number (135193170).

Almost surely, 2^8899120971 is an apocalyptic number.

8899120971 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

8899120971 is a deficient number, since it is larger than the sum of its proper divisors (6242514069).

8899120971 is a wasteful number, since it uses less digits than its factorization.

8899120971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728 (or 713 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 54.

The square root of 8899120971 is about 94335.1523611427. The cubic root of 8899120971 is about 2072.2828689697.

The spelling of 8899120971 in words is "eight billion, eight hundred ninety-nine million, one hundred twenty thousand, nine hundred seventy-one".