969127909 has 2 divisors, whose sum is σ = 969127910. Its totient is φ = 969127908.

The previous prime is 969127903. The next prime is 969127967. The reversal of 969127909 is 909721969.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 759167809 + 209960100 = 27553^2 + 14490^2 .

It is a cyclic number.

It is not a de Polignac number, because 969127909 - 2⁷ = 969127781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (969127903) 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, 484563954 + 484563955.

It is an arithmetic number, because the mean of its divisors is an integer number (484563955).

Almost surely, 2^969127909 is an apocalyptic number.

It is an amenable number.

969127909 is a deficient number, since it is larger than the sum of its proper divisors (1).

969127909 is an equidigital number, since it uses as much as digits as its factorization.

969127909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 551124, while the sum is 52.

The square root of 969127909 is about 31130.8192792930. The cubic root of 969127909 is about 989.6015500252.

The spelling of 969127909 in words is "nine hundred sixty-nine million, one hundred twenty-seven thousand, nine hundred nine".