969645979 has 8 divisors (see below), whose sum is σ = 974338848. Its totient is φ = 964962240.

The previous prime is 969645961. The next prime is 969645997. The reversal of 969645979 is 979546969.

It is an interprime number because it is at equal distance from previous prime (969645961) and next prime (969645997).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 969645979 - 2⁵ = 969645947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 969645979.

It is not an unprimeable number, because it can be changed into a prime (969645179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302274 + ... + 305464.

It is an arithmetic number, because the mean of its divisors is an integer number (121792356).

Almost surely, 2^969645979 is an apocalyptic number.

969645979 is a deficient number, since it is larger than the sum of its proper divisors (4692869).

969645979 is a wasteful number, since it uses less digits than its factorization.

969645979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4565.

The product of its digits is 33067440, while the sum is 64.

The square root of 969645979 is about 31139.1390214951. The cubic root of 969645979 is about 989.7778568339. Note that the first 3 decimals are identical.

The spelling of 969645979 in words is "nine hundred sixty-nine million, six hundred forty-five thousand, nine hundred seventy-nine".