65737643 has 2 divisors, whose sum is σ = 65737644. Its totient is φ = 65737642.

The previous prime is 65737601. The next prime is 65737681. The reversal of 65737643 is 34673756.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65737643 - 2²⁴ = 48960427 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65737643.

It is not a weakly prime, because it can be changed into another prime (65733643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32868821 + 32868822.

It is an arithmetic number, because the mean of its divisors is an integer number (32868822).

Almost surely, 2^65737643 is an apocalyptic number.

65737643 is a deficient number, since it is larger than the sum of its proper divisors (1).

65737643 is an equidigital number, since it uses as much as digits as its factorization.

65737643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 41.

The square root of 65737643 is about 8107.8753690471. The cubic root of 65737643 is about 403.5878123731.

The spelling of 65737643 in words is "sixty-five million, seven hundred thirty-seven thousand, six hundred forty-three".