64339013 has 2 divisors, whose sum is σ = 64339014. Its totient is φ = 64339012.

The previous prime is 64339003. The next prime is 64339019. The reversal of 64339013 is 31093346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47306884 + 17032129 = 6878^2 + 4127^2 .

It is a cyclic number.

It is not a de Polignac number, because 64339013 - 2⁶ = 64338949 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64339019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32169506 + 32169507.

It is an arithmetic number, because the mean of its divisors is an integer number (32169507).

Almost surely, 2^64339013 is an apocalyptic number.

It is an amenable number.

64339013 is a deficient number, since it is larger than the sum of its proper divisors (1).

64339013 is an equidigital number, since it uses as much as digits as its factorization.

64339013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 64339013 is about 8021.1603275337. The cubic root of 64339013 is about 400.7050336720.

The spelling of 64339013 in words is "sixty-four million, three hundred thirty-nine thousand, thirteen".