8423989392 has 80 divisors (see below), whose sum is σ = 26783980160. Its totient is φ = 2221710336.

The previous prime is 8423989391. The next prime is 8423989423. The reversal of 8423989392 is 2939893248.

It is not an unprimeable number, because it can be changed into a prime (8423989391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 959917 + ... + 968652.

It is an arithmetic number, because the mean of its divisors is an integer number (334799752).

Almost surely, 2^8423989392 is an apocalyptic number.

It is an amenable number.

8423989392 is an abundant number, since it is smaller than the sum of its proper divisors (18359990768).

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

8423989392 is a wasteful number, since it uses less digits than its factorization.

8423989392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928600 (or 1928594 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 57.

The square root of 8423989392 is about 91782.2934557641. The cubic root of 8423989392 is about 2034.7260117253.

The spelling of 8423989392 in words is "eight billion, four hundred twenty-three million, nine hundred eighty-nine thousand, three hundred ninety-two".