956891 has 4 divisors (see below), whose sum is σ = 1030512. Its totient is φ = 883272.

The previous prime is 956881. The next prime is 956903. The reversal of 956891 is 198659.

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

It is not a de Polignac number, because 956891 - 2¹⁸ = 694747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (956801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36791 + ... + 36816.

It is an arithmetic number, because the mean of its divisors is an integer number (257628).

2⁹⁵⁶⁸⁹¹ is an apocalyptic number.

956891 is a deficient number, since it is larger than the sum of its proper divisors (73621).

956891 is a wasteful number, since it uses less digits than its factorization.

956891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73620.

The product of its digits is 19440, while the sum is 38.

The square root of 956891 is about 978.2080555792. The cubic root of 956891 is about 98.5418753984.

The spelling of 956891 in words is "nine hundred fifty-six thousand, eight hundred ninety-one".