969668779 has 2 divisors, whose sum is σ = 969668780. Its totient is φ = 969668778.

The previous prime is 969668773. The next prime is 969668789. The reversal of 969668779 is 977866969.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 969668779 - 2²³ = 961280171 is a prime.

It is not a weakly prime, because it can be changed into another prime (969668773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 484834389 + 484834390.

It is an arithmetic number, because the mean of its divisors is an integer number (484834390).

Almost surely, 2^969668779 is an apocalyptic number.

969668779 is a deficient number, since it is larger than the sum of its proper divisors (1).

969668779 is an equidigital number, since it uses as much as digits as its factorization.

969668779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61725888, while the sum is 67.

The square root of 969668779 is about 31139.5051180972. The cubic root of 969668779 is about 989.7856145650.

The spelling of 969668779 in words is "nine hundred sixty-nine million, six hundred sixty-eight thousand, seven hundred seventy-nine".