965643233 has 2 divisors, whose sum is σ = 965643234. Its totient is φ = 965643232.

The previous prime is 965643229. The next prime is 965643281. The reversal of 965643233 is 332346569.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 743543824 + 222099409 = 27268^2 + 14903^2 .

It is an emirp because it is prime and its reverse (332346569) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 965643233 - 2² = 965643229 is a prime.

It is not a weakly prime, because it can be changed into another prime (965643533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482821616 + 482821617.

It is an arithmetic number, because the mean of its divisors is an integer number (482821617).

Almost surely, 2^965643233 is an apocalyptic number.

It is an amenable number.

965643233 is a deficient number, since it is larger than the sum of its proper divisors (1).

965643233 is an equidigital number, since it uses as much as digits as its factorization.

965643233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 41.

The square root of 965643233 is about 31074.8006107843. The cubic root of 965643233 is about 988.4140279995.

The spelling of 965643233 in words is "nine hundred sixty-five million, six hundred forty-three thousand, two hundred thirty-three".