65644283 has 2 divisors, whose sum is σ = 65644284. Its totient is φ = 65644282.

The previous prime is 65644223. The next prime is 65644349. The reversal of 65644283 is 38244656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65644283 - 2⁸ = 65644027 is a prime.

It is not a weakly prime, because it can be changed into another prime (65644223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32822141 + 32822142.

It is an arithmetic number, because the mean of its divisors is an integer number (32822142).

Almost surely, 2^65644283 is an apocalyptic number.

65644283 is a deficient number, since it is larger than the sum of its proper divisors (1).

65644283 is an equidigital number, since it uses as much as digits as its factorization.

65644283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 38.

The square root of 65644283 is about 8102.1159581926. The cubic root of 65644283 is about 403.3966646145.

The spelling of 65644283 in words is "sixty-five million, six hundred forty-four thousand, two hundred eighty-three".