956721023 has 2 divisors, whose sum is σ = 956721024. Its totient is φ = 956721022.

The previous prime is 956720983. The next prime is 956721037. The reversal of 956721023 is 320127659.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 956721023 - 2²⁰ = 955672447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (956721083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 478360511 + 478360512.

It is an arithmetic number, because the mean of its divisors is an integer number (478360512).

Almost surely, 2^956721023 is an apocalyptic number.

956721023 is a deficient number, since it is larger than the sum of its proper divisors (1).

956721023 is an equidigital number, since it uses as much as digits as its factorization.

956721023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 956721023 is about 30930.9072450195. The cubic root of 956721023 is about 985.3604023564.

The spelling of 956721023 in words is "nine hundred fifty-six million, seven hundred twenty-one thousand, twenty-three".