989876764 has 6 divisors (see below), whose sum is σ = 1732284344. Its totient is φ = 494938380.

The previous prime is 989876747. The next prime is 989876773. The reversal of 989876764 is 467678989.

It is a super-2 number, since 2×989876764² = 1959712015814223392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 989876696 and 989876705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123734592 + ... + 123734599.

Almost surely, 2^989876764 is an apocalyptic number.

It is an amenable number.

989876764 is a deficient number, since it is larger than the sum of its proper divisors (742407580).

989876764 is a wasteful number, since it uses less digits than its factorization.

989876764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247469195 (or 247469193 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 64.

The square root of 989876764 is about 31462.3070355624. The cubic root of 989876764 is about 996.6141368695.

The spelling of 989876764 in words is "nine hundred eighty-nine million, eight hundred seventy-six thousand, seven hundred sixty-four".