969978089 has 12 divisors (see below), whose sum is σ = 992062656. Its totient is φ = 948293592.

The previous prime is 969978077. The next prime is 969978131. The reversal of 969978089 is 980879969.

969978089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-969978089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (969978389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 708884 + ... + 710250.

It is an arithmetic number, because the mean of its divisors is an integer number (82671888).

Almost surely, 2^969978089 is an apocalyptic number.

It is an amenable number.

969978089 is a deficient number, since it is larger than the sum of its proper divisors (22084567).

969978089 is a wasteful number, since it uses less digits than its factorization.

969978089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636 (or 1553 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 65.

The square root of 969978089 is about 31144.4712429028. The cubic root of 969978089 is about 989.8908457010.

The spelling of 969978089 in words is "nine hundred sixty-nine million, nine hundred seventy-eight thousand, eighty-nine".