8391984998 has 8 divisors (see below), whose sum is σ = 12657524880. Its totient is φ = 4172810040.

The previous prime is 8391984989. The next prime is 8391985079. The reversal of 8391984998 is 8994891938.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11590778 + ... + 11591501.

It is an arithmetic number, because the mean of its divisors is an integer number (1582190610).

Almost surely, 2^8391984998 is an apocalyptic number.

8391984998 is a deficient number, since it is larger than the sum of its proper divisors (4265539882).

8391984998 is a wasteful number, since it uses less digits than its factorization.

8391984998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23182462.

The product of its digits is 40310784, while the sum is 68.

The square root of 8391984998 is about 91607.7780431334. The cubic root of 8391984998 is about 2032.1459667074.

The spelling of 8391984998 in words is "eight billion, three hundred ninety-one million, nine hundred eighty-four thousand, nine hundred ninety-eight".