8900091972 has 24 divisors (see below), whose sum is σ = 23074312800. Its totient is φ = 2966697288.

The previous prime is 8900091953. The next prime is 8900091997. The reversal of 8900091972 is 2791900098.

It is a super-2 number, since 2×8900091972² (a number of 21 digits) contains 22 as substring.

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, 41204022 + ... + 41204237.

It is an arithmetic number, because the mean of its divisors is an integer number (961429700).

Almost surely, 2^8900091972 is an apocalyptic number.

It is an amenable number.

8900091972 is an abundant number, since it is smaller than the sum of its proper divisors (14174220828).

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

8900091972 is a wasteful number, since it uses less digits than its factorization.

8900091972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82408272 (or 82408264 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 8900091972 is about 94340.2987699318. The cubic root of 8900091972 is about 2072.3582365469.

The spelling of 8900091972 in words is "eight billion, nine hundred million, ninety-one thousand, nine hundred seventy-two".