64503317 has 4 divisors (see below), whose sum is σ = 65875776. Its totient is φ = 63130860.

The previous prime is 64503301. The next prime is 64503319. The reversal of 64503317 is 71330546.

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 64503317 - 2⁴ = 64503301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64503317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64503319) 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, 686159 + ... + 686252.

It is an arithmetic number, because the mean of its divisors is an integer number (16468944).

Almost surely, 2^64503317 is an apocalyptic number.

It is an amenable number.

64503317 is a deficient number, since it is larger than the sum of its proper divisors (1372459).

64503317 is a wasteful number, since it uses less digits than its factorization.

64503317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372458.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 64503317 is about 8031.3957068495. The cubic root of 64503317 is about 401.0458402456.

The spelling of 64503317 in words is "sixty-four million, five hundred three thousand, three hundred seventeen".