956320993 has 4 divisors (see below), whose sum is σ = 958730260. Its totient is φ = 953911728.

The previous prime is 956320913. The next prime is 956320999. The reversal of 956320993 is 399023659.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 373726224 + 582594769 = 19332^2 + 24137^2 .

It is a cyclic number.

It is not a de Polignac number, because 956320993 - 2¹⁷ = 956189921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (956320999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204038 + ... + 1204831.

It is an arithmetic number, because the mean of its divisors is an integer number (239682565).

Almost surely, 2^956320993 is an apocalyptic number.

It is an amenable number.

956320993 is a deficient number, since it is larger than the sum of its proper divisors (2409267).

956320993 is a wasteful number, since it uses less digits than its factorization.

956320993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409266.

The product of its (nonzero) digits is 393660, while the sum is 46.

The square root of 956320993 is about 30924.4400596033. The cubic root of 956320993 is about 985.2230482538.

The spelling of 956320993 in words is "nine hundred fifty-six million, three hundred twenty thousand, nine hundred ninety-three".