65022989 has 2 divisors, whose sum is σ = 65022990. Its totient is φ = 65022988.

The previous prime is 65022967. The next prime is 65023019. The reversal of 65022989 is 98922056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60684100 + 4338889 = 7790^2 + 2083^2 .

It is a cyclic number.

It is not a de Polignac number, because 65022989 - 2²⁰ = 63974413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65022289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32511494 + 32511495.

It is an arithmetic number, because the mean of its divisors is an integer number (32511495).

Almost surely, 2^65022989 is an apocalyptic number.

It is an amenable number.

65022989 is a deficient number, since it is larger than the sum of its proper divisors (1).

65022989 is an equidigital number, since it uses as much as digits as its factorization.

65022989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 65022989 is about 8063.6833395167. The cubic root of 65022989 is about 402.1199715356.

The spelling of 65022989 in words is "sixty-five million, twenty-two thousand, nine hundred eighty-nine".