957861 has 12 divisors (see below), whose sum is σ = 1404000. Its totient is φ = 629160.

The previous prime is 957851. The next prime is 957871. The reversal of 957861 is 168759.

It is an interprime number because it is at equal distance from previous prime (957851) and next prime (957871).

It is not a de Polignac number, because 957861 - 2⁹ = 957349 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 957861.

It is not an unprimeable number, because it can be changed into a prime (957811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111 + ... + 1388.

It is an arithmetic number, because the mean of its divisors is an integer number (117000).

2⁹⁵⁷⁸⁶¹ is an apocalyptic number.

It is an amenable number.

957861 is a deficient number, since it is larger than the sum of its proper divisors (446139).

957861 is a wasteful number, since it uses less digits than its factorization.

957861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576 (or 1573 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 957861 is about 978.7037345387. The cubic root of 957861 is about 98.5751614393.

The spelling of 957861 in words is "nine hundred fifty-seven thousand, eight hundred sixty-one".