64712263 has 16 divisors (see below), whose sum is σ = 80939520. Its totient is φ = 50263200.

The previous prime is 64712257. The next prime is 64712267. The reversal of 64712263 is 36221746.

It is a cyclic number.

It is not a de Polignac number, because 64712263 - 2⁵ = 64712231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64712267) 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 in 15 ways as a sum of consecutive naturals, for example, 26473 + ... + 28813.

It is an arithmetic number, because the mean of its divisors is an integer number (5058720).

Almost surely, 2^64712263 is an apocalyptic number.

64712263 is a deficient number, since it is larger than the sum of its proper divisors (16227257).

64712263 is a wasteful number, since it uses less digits than its factorization.

64712263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718.

The product of its digits is 12096, while the sum is 31.

The square root of 64712263 is about 8044.3932648771. The cubic root of 64712263 is about 401.4784102756.

The spelling of 64712263 in words is "sixty-four million, seven hundred twelve thousand, two hundred sixty-three".