957683661 has 24 divisors (see below), whose sum is σ = 1486118592. Its totient is φ = 546268800.

The previous prime is 957683653. The next prime is 957683663. The reversal of 957683661 is 166386759.

It is not a de Polignac number, because 957683661 - 2³ = 957683653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (957683663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71425 + ... + 83766.

It is an arithmetic number, because the mean of its divisors is an integer number (61921608).

Almost surely, 2^957683661 is an apocalyptic number.

It is an amenable number.

957683661 is a deficient number, since it is larger than the sum of its proper divisors (528434931).

957683661 is a wasteful number, since it uses less digits than its factorization.

957683661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155233 (or 155222 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The square root of 957683661 is about 30946.4644345683. The cubic root of 957683661 is about 985.6907764099.

The spelling of 957683661 in words is "nine hundred fifty-seven million, six hundred eighty-three thousand, six hundred sixty-one".