64338317 has 4 divisors (see below), whose sum is σ = 64400700. Its totient is φ = 64275936.

The previous prime is 64338293. The next prime is 64338341. The reversal of 64338317 is 71383346.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71383346 = 2 ⋅35691673.

It is an interprime number because it is at equal distance from previous prime (64338293) and next prime (64338341).

It can be written as a sum of positive squares in 2 ways, for example, as 61058596 + 3279721 = 7814^2 + 1811^2 .

It is a cyclic number.

It is not a de Polignac number, because 64338317 - 2¹⁰ = 64337293 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 (64338377) 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, 29618 + ... + 31715.

It is an arithmetic number, because the mean of its divisors is an integer number (16100175).

Almost surely, 2^64338317 is an apocalyptic number.

It is an amenable number.

64338317 is a deficient number, since it is larger than the sum of its proper divisors (62383).

64338317 is a wasteful number, since it uses less digits than its factorization.

64338317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62382.

The product of its digits is 36288, while the sum is 35.

The square root of 64338317 is about 8021.1169421721. The cubic root of 64338317 is about 400.7035887648.

The spelling of 64338317 in words is "sixty-four million, three hundred thirty-eight thousand, three hundred seventeen".