956561 has 8 divisors (see below), whose sum is σ = 995904. Its totient is φ = 918000.

The previous prime is 956521. The next prime is 956569. The reversal of 956561 is 165659.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-956561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (956569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3686 + ... + 3936.

It is an arithmetic number, because the mean of its divisors is an integer number (124488).

2⁹⁵⁶⁵⁶¹ is an apocalyptic number.

It is an amenable number.

956561 is a deficient number, since it is larger than the sum of its proper divisors (39343).

956561 is a wasteful number, since it uses less digits than its factorization.

956561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391.

The product of its digits is 8100, while the sum is 32.

The square root of 956561 is about 978.0393652609. The cubic root of 956561 is about 98.5305461534.

The spelling of 956561 in words is "nine hundred fifty-six thousand, five hundred sixty-one".