969656809 has 4 divisors (see below), whose sum is σ = 1057807440. Its totient is φ = 881506180.

The previous prime is 969656801. The next prime is 969656813. The reversal of 969656809 is 908656969.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 969656809 - 2³ = 969656801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (969656801) 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, 44075299 + ... + 44075320.

It is an arithmetic number, because the mean of its divisors is an integer number (264451860).

Almost surely, 2^969656809 is an apocalyptic number.

It is an amenable number.

969656809 is a deficient number, since it is larger than the sum of its proper divisors (88150631).

969656809 is a wasteful number, since it uses less digits than its factorization.

969656809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88150630.

The product of its (nonzero) digits is 6298560, while the sum is 58.

The square root of 969656809 is about 31139.3129179178. The cubic root of 969656809 is about 989.7815417713.

The spelling of 969656809 in words is "nine hundred sixty-nine million, six hundred fifty-six thousand, eight hundred nine".