957220069 has 8 divisors (see below), whose sum is σ = 1031125592. Its totient is φ = 883353600.

The previous prime is 957220039. The next prime is 957220079. The reversal of 957220069 is 960022759.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 53436100 + 903783969 = 7310^2 + 30063^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-957220069 is a prime.

It is a super-2 number, since 2×957220069² = 1832540520992729522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (957220039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59269 + ... + 73669.

It is an arithmetic number, because the mean of its divisors is an integer number (128890699).

Almost surely, 2^957220069 is an apocalyptic number.

It is an amenable number.

957220069 is a deficient number, since it is larger than the sum of its proper divisors (73905523).

957220069 is a wasteful number, since it uses less digits than its factorization.

957220069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19527.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 957220069 is about 30938.9733022930. The cubic root of 957220069 is about 985.5317008783.

The spelling of 957220069 in words is "nine hundred fifty-seven million, two hundred twenty thousand, sixty-nine".