64744271 has 2 divisors, whose sum is σ = 64744272. Its totient is φ = 64744270.

The previous prime is 64744249. The next prime is 64744307. The reversal of 64744271 is 17244746.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64744271 - 2¹⁰ = 64743247 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 (64744201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32372135 + 32372136.

It is an arithmetic number, because the mean of its divisors is an integer number (32372136).

Almost surely, 2^64744271 is an apocalyptic number.

64744271 is a deficient number, since it is larger than the sum of its proper divisors (1).

64744271 is an equidigital number, since it uses as much as digits as its factorization.

64744271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 35.

The square root of 64744271 is about 8046.3824791020. The cubic root of 64744271 is about 401.5445924913.

The spelling of 64744271 in words is "sixty-four million, seven hundred forty-four thousand, two hundred seventy-one".