989292768 has 24 divisors (see below), whose sum is σ = 2596893768. Its totient is φ = 329764224.

The previous prime is 989292763. The next prime is 989292769. The reversal of 989292768 is 867292989.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989292763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5152471 + ... + 5152662.

It is an arithmetic number, because the mean of its divisors is an integer number (108203907).

Almost surely, 2^989292768 is an apocalyptic number.

It is an amenable number.

989292768 is an abundant number, since it is smaller than the sum of its proper divisors (1607601000).

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

989292768 is a wasteful number, since it uses less digits than its factorization.

989292768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10305146 (or 10305138 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 60.

The square root of 989292768 is about 31453.0247829998. The cubic root of 989292768 is about 996.4181080351.

The spelling of 989292768 in words is "nine hundred eighty-nine million, two hundred ninety-two thousand, seven hundred sixty-eight".