965723917 has 2 divisors, whose sum is σ = 965723918. Its totient is φ = 965723916.

The previous prime is 965723893. The next prime is 965723921. The reversal of 965723917 is 719327569.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 867832681 + 97891236 = 29459^2 + 9894^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-965723917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (965723987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482861958 + 482861959.

It is an arithmetic number, because the mean of its divisors is an integer number (482861959).

Almost surely, 2^965723917 is an apocalyptic number.

It is an amenable number.

965723917 is a deficient number, since it is larger than the sum of its proper divisors (1).

965723917 is an equidigital number, since it uses as much as digits as its factorization.

965723917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 714420, while the sum is 49.

The square root of 965723917 is about 31076.0988059956. The cubic root of 965723917 is about 988.4415561015.

It can be divided in two parts, 96572 and 3917, that added together give a square (100489 = 317²).

The spelling of 965723917 in words is "nine hundred sixty-five million, seven hundred twenty-three thousand, nine hundred seventeen".