64707271 has 2 divisors, whose sum is σ = 64707272. Its totient is φ = 64707270.

The previous prime is 64707263. The next prime is 64707277. The reversal of 64707271 is 17270746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64707271 - 2³ = 64707263 is a prime.

It is a super-3 number, since 3×64707271³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64707277) 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, 32353635 + 32353636.

It is an arithmetic number, because the mean of its divisors is an integer number (32353636).

Almost surely, 2^64707271 is an apocalyptic number.

64707271 is a deficient number, since it is larger than the sum of its proper divisors (1).

64707271 is an equidigital number, since it uses as much as digits as its factorization.

64707271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 64707271 is about 8044.0829806759. The cubic root of 64707271 is about 401.4680864634.

The spelling of 64707271 in words is "sixty-four million, seven hundred seven thousand, two hundred seventy-one".