64707263 has 2 divisors, whose sum is σ = 64707264. Its totient is φ = 64707262.

The previous prime is 64707259. The next prime is 64707271. The reversal of 64707263 is 36270746.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64707263 - 2² = 64707259 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64707163) 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, 32353631 + 32353632.

It is an arithmetic number, because the mean of its divisors is an integer number (32353632).

Almost surely, 2^64707263 is an apocalyptic number.

64707263 is a deficient number, since it is larger than the sum of its proper divisors (1).

64707263 is an equidigital number, since it uses as much as digits as its factorization.

64707263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 64707263 is about 8044.0824834160. The cubic root of 64707263 is about 401.4680699184.

The spelling of 64707263 in words is "sixty-four million, seven hundred seven thousand, two hundred sixty-three".