989392104 has 64 divisors (see below), whose sum is σ = 2867817600. Its totient is φ = 315456768.

The previous prime is 989392097. The next prime is 989392109. The reversal of 989392104 is 401293989.

It is a self number, because there is not a number n which added to its sum of digits gives 989392104.

It is not an unprimeable number, because it can be changed into a prime (989392109) 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, 94609 + ... + 104544.

It is an arithmetic number, because the mean of its divisors is an integer number (44809650).

Almost surely, 2^989392104 is an apocalyptic number.

It is an amenable number.

989392104 is an abundant number, since it is smaller than the sum of its proper divisors (1878425496).

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

989392104 is a wasteful number, since it uses less digits than its factorization.

989392104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199191 (or 199181 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 989392104 is about 31454.6038601665. The cubic root of 989392104 is about 996.4514574067.

The spelling of 989392104 in words is "nine hundred eighty-nine million, three hundred ninety-two thousand, one hundred four".