969644069 has 2 divisors, whose sum is σ = 969644070. Its totient is φ = 969644068.

The previous prime is 969644059. The next prime is 969644083. The reversal of 969644069 is 960446969.

It is a happy number.

969644069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 952463044 + 17181025 = 30862^2 + 4145^2 .

It is a cyclic number.

It is not a de Polignac number, because 969644069 - 2⁸ = 969643813 is a prime.

It is a super-3 number, since 3×969644069³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 969644069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (969644059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 484822034 + 484822035.

It is an arithmetic number, because the mean of its divisors is an integer number (484822035).

Almost surely, 2^969644069 is an apocalyptic number.

It is an amenable number.

969644069 is a deficient number, since it is larger than the sum of its proper divisors (1).

969644069 is an equidigital number, since it uses as much as digits as its factorization.

969644069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2519424, while the sum is 53.

The square root of 969644069 is about 31139.1083526809. The cubic root of 969644069 is about 989.7772069482. Note that the first 3 decimals are identical.

The spelling of 969644069 in words is "nine hundred sixty-nine million, six hundred forty-four thousand, sixty-nine".