64319039 has 2 divisors, whose sum is σ = 64319040. Its totient is φ = 64319038.

The previous prime is 64319033. The next prime is 64319069. The reversal of 64319039 is 93091346.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64319039 - 2⁸ = 64318783 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 (64319033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32159519 + 32159520.

It is an arithmetic number, because the mean of its divisors is an integer number (32159520).

Almost surely, 2^64319039 is an apocalyptic number.

64319039 is a deficient number, since it is larger than the sum of its proper divisors (1).

64319039 is an equidigital number, since it uses as much as digits as its factorization.

64319039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 64319039 is about 8019.9151491771. The cubic root of 64319039 is about 400.6635631844.

The spelling of 64319039 in words is "sixty-four million, three hundred nineteen thousand, thirty-nine".