63864317 has 4 divisors (see below), whose sum is σ = 69670176. Its totient is φ = 58058460.

The previous prime is 63864233. The next prime is 63864337. The reversal of 63864317 is 71346836.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63864317 - 2¹⁴ = 63847933 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 (63864337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2902913 + ... + 2902934.

It is an arithmetic number, because the mean of its divisors is an integer number (17417544).

Almost surely, 2^63864317 is an apocalyptic number.

It is an amenable number.

63864317 is a deficient number, since it is larger than the sum of its proper divisors (5805859).

63864317 is a wasteful number, since it uses less digits than its factorization.

63864317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5805858.

The product of its digits is 72576, while the sum is 38.

The square root of 63864317 is about 7991.5153131305. The cubic root of 63864317 is about 399.7171270878.

The spelling of 63864317 in words is "sixty-three million, eight hundred sixty-four thousand, three hundred seventeen".