64338013 has 8 divisors (see below), whose sum is σ = 68749560. Its totient is φ = 59996160.

The previous prime is 64338007. The next prime is 64338049. The reversal of 64338013 is 31083346.

It can be written as a sum of positive squares in 4 ways, for example, as 25674489 + 38663524 = 5067^2 + 6218^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64338013 - 2¹³ = 64329821 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 (64338413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15508 + ... + 19213.

It is an arithmetic number, because the mean of its divisors is an integer number (8593695).

Almost surely, 2^64338013 is an apocalyptic number.

It is an amenable number.

64338013 is a deficient number, since it is larger than the sum of its proper divisors (4411547).

64338013 is a wasteful number, since it uses less digits than its factorization.

64338013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34847.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 64338013 is about 8021.0979921704. The cubic root of 64338013 is about 400.7029576527.

The spelling of 64338013 in words is "sixty-four million, three hundred thirty-eight thousand, thirteen".