956716321 has 4 divisors (see below), whose sum is σ = 1043690544. Its totient is φ = 869742100.

The previous prime is 956716297. The next prime is 956716379. The reversal of 956716321 is 123617659.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 956716321 - 2⁷ = 956716193 is a prime.

It is a super-2 number, since 2×956716321² = 1830612237735550082, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (956716391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43487095 + ... + 43487116.

It is an arithmetic number, because the mean of its divisors is an integer number (260922636).

Almost surely, 2^956716321 is an apocalyptic number.

It is an amenable number.

956716321 is a deficient number, since it is larger than the sum of its proper divisors (86974223).

956716321 is a wasteful number, since it uses less digits than its factorization.

956716321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86974222.

The product of its digits is 68040, while the sum is 40.

The square root of 956716321 is about 30930.8312368097. The cubic root of 956716321 is about 985.3587881024.

The spelling of 956716321 in words is "nine hundred fifty-six million, seven hundred sixteen thousand, three hundred twenty-one".