875957861 has 16 divisors (see below), whose sum is σ = 937312560. Its totient is φ = 815738880.

The previous prime is 875957843. The next prime is 875957867. The reversal of 875957861 is 168759578.

It can be written as a sum of positive squares in 8 ways, for example, as 23668225 + 852289636 = 4865^2 + 29194^2 .

It is a de Polignac number, because none of the positive numbers 2^k-875957861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 875957797 and 875957806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (875957867) 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, 1324871 + ... + 1325531.

It is an arithmetic number, because the mean of its divisors is an integer number (58582035).

Almost surely, 2^875957861 is an apocalyptic number.

It is an amenable number.

875957861 is a deficient number, since it is larger than the sum of its proper divisors (61354699).

875957861 is a wasteful number, since it uses less digits than its factorization.

875957861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384.

The product of its digits is 4233600, while the sum is 56.

The square root of 875957861 is about 29596.5852929016. The cubic root of 875957861 is about 956.8144778564.

The spelling of 875957861 in words is "eight hundred seventy-five million, nine hundred fifty-seven thousand, eight hundred sixty-one".