64038389 has 2 divisors, whose sum is σ = 64038390. Its totient is φ = 64038388.

The previous prime is 64038367. The next prime is 64038397. The reversal of 64038389 is 98383046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43335889 + 20702500 = 6583^2 + 4550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64038389 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64038319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32019194 + 32019195.

It is an arithmetic number, because the mean of its divisors is an integer number (32019195).

Almost surely, 2^64038389 is an apocalyptic number.

It is an amenable number.

64038389 is a deficient number, since it is larger than the sum of its proper divisors (1).

64038389 is an equidigital number, since it uses as much as digits as its factorization.

64038389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 64038389 is about 8002.3989528141. The cubic root of 64038389 is about 400.0799610978.

The spelling of 64038389 in words is "sixty-four million, thirty-eight thousand, three hundred eighty-nine".