9656599723 has 2 divisors, whose sum is σ = 9656599724. Its totient is φ = 9656599722.

The previous prime is 9656599669. The next prime is 9656599751. The reversal of 9656599723 is 3279956569.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9656599723 - 2¹³ = 9656591531 is a prime.

It is a super-3 number, since 3×9656599723³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (9656599753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4828299861 + 4828299862.

It is an arithmetic number, because the mean of its divisors is an integer number (4828299862).

Almost surely, 2^9656599723 is an apocalyptic number.

9656599723 is a deficient number, since it is larger than the sum of its proper divisors (1).

9656599723 is an equidigital number, since it uses as much as digits as its factorization.

9656599723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27556200, while the sum is 61.

The square root of 9656599723 is about 98267.9994860992. Note that the first 3 decimals coincide. The cubic root of 9656599723 is about 2129.4857746804.

The spelling of 9656599723 in words is "nine billion, six hundred fifty-six million, five hundred ninety-nine thousand, seven hundred twenty-three".