8491973598 has 12 divisors (see below), whose sum is σ = 18399276168. Its totient is φ = 2830657860.

The previous prime is 8491973593. The next prime is 8491973621. The reversal of 8491973598 is 8953791948.

8491973598 is a `hidden beast` number, since 8 + 491 + 97 + 3 + 59 + 8 = 666.

It is a super-2 number, since 2×8491973598² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8491973591) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 235888138 + ... + 235888173.

It is an arithmetic number, because the mean of its divisors is an integer number (1533273014).

Almost surely, 2^8491973598 is an apocalyptic number.

8491973598 is an abundant number, since it is smaller than the sum of its proper divisors (9907302570).

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

8491973598 is a wasteful number, since it uses less digits than its factorization.

8491973598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471776319 (or 471776316 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 63.

The square root of 8491973598 is about 92151.9050155774. The cubic root of 8491973598 is about 2040.1849760181.

The spelling of 8491973598 in words is "eight billion, four hundred ninety-one million, nine hundred seventy-three thousand, five hundred ninety-eight".