9665230957 has 4 divisors (see below), whose sum is σ = 9668938140. Its totient is φ = 9661523776.

The previous prime is 9665230931. The next prime is 9665230961. The reversal of 9665230957 is 7590325669.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4244001316 + 5421229641 = 65146^2 + 73629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9665230957 is a prime.

It is a super-2 number, since 2×9665230957² (a number of 21 digits) 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 (9665237957) 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, 1849678 + ... + 1854895.

It is an arithmetic number, because the mean of its divisors is an integer number (2417234535).

Almost surely, 2^9665230957 is an apocalyptic number.

It is an amenable number.

9665230957 is a deficient number, since it is larger than the sum of its proper divisors (3707183).

9665230957 is a wasteful number, since it uses less digits than its factorization.

9665230957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707182.

The product of its (nonzero) digits is 3061800, while the sum is 52.

The square root of 9665230957 is about 98311.9064864475. The cubic root of 9665230957 is about 2130.1200426809.

The spelling of 9665230957 in words is "nine billion, six hundred sixty-five million, two hundred thirty thousand, nine hundred fifty-seven".