989476799 has 4 divisors (see below), whose sum is σ = 989542320. Its totient is φ = 989411280.

The previous prime is 989476793. The next prime is 989476801. The reversal of 989476799 is 997674989.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 989476799 - 2²⁰ = 988428223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989476793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2654 + ... + 44564.

It is an arithmetic number, because the mean of its divisors is an integer number (247385580).

Almost surely, 2^989476799 is an apocalyptic number.

989476799 is a deficient number, since it is larger than the sum of its proper divisors (65521).

989476799 is a wasteful number, since it uses less digits than its factorization.

989476799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65520.

The product of its digits is 61725888, while the sum is 68.

The square root of 989476799 is about 31455.9501366594. The cubic root of 989476799 is about 996.4798896962.

The spelling of 989476799 in words is "nine hundred eighty-nine million, four hundred seventy-six thousand, seven hundred ninety-nine".