957663965 has 16 divisors (see below), whose sum is σ = 1177545600. Its totient is φ = 747281472.

The previous prime is 957663961. The next prime is 957663977. The reversal of 957663965 is 569366759.

It is a cyclic number.

It is not a de Polignac number, because 957663965 - 2² = 957663961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 957663965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (957663961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177731 + ... + 183039.

It is an arithmetic number, because the mean of its divisors is an integer number (73596600).

Almost surely, 2^957663965 is an apocalyptic number.

It is an amenable number.

957663965 is a deficient number, since it is larger than the sum of its proper divisors (219881635).

957663965 is a wasteful number, since it uses less digits than its factorization.

957663965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6196.

The product of its digits is 9185400, while the sum is 56.

The square root of 957663965 is about 30946.1462059495. The cubic root of 957663965 is about 985.6840190295.

The spelling of 957663965 in words is "nine hundred fifty-seven million, six hundred sixty-three thousand, nine hundred sixty-five".