965798389 has 2 divisors, whose sum is σ = 965798390. Its totient is φ = 965798388.

The previous prime is 965798387. The next prime is 965798401. The reversal of 965798389 is 983897569.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 964599364 + 1199025 = 31058^2 + 1095^2 .

It is a cyclic number.

It is not a de Polignac number, because 965798389 - 2¹ = 965798387 is a prime.

Together with 965798387, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 965798389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (965798387) 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, 482899194 + 482899195.

It is an arithmetic number, because the mean of its divisors is an integer number (482899195).

Almost surely, 2^965798389 is an apocalyptic number.

It is an amenable number.

965798389 is a deficient number, since it is larger than the sum of its proper divisors (1).

965798389 is an equidigital number, since it uses as much as digits as its factorization.

965798389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29393280, while the sum is 64.

The square root of 965798389 is about 31077.2970027961. The cubic root of 965798389 is about 988.4669634069.

The spelling of 965798389 in words is "nine hundred sixty-five million, seven hundred ninety-eight thousand, three hundred eighty-nine".