64044319 has 2 divisors, whose sum is σ = 64044320. Its totient is φ = 64044318.

The previous prime is 64044313. The next prime is 64044353. The reversal of 64044319 is 91344046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64044319 - 2¹⁷ = 63913247 is a prime.

It is a super-2 number, since 2×64044319² = 8203349592347522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64044313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32022159 + 32022160.

It is an arithmetic number, because the mean of its divisors is an integer number (32022160).

Almost surely, 2^64044319 is an apocalyptic number.

64044319 is a deficient number, since it is larger than the sum of its proper divisors (1).

64044319 is an equidigital number, since it uses as much as digits as its factorization.

64044319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 64044319 is about 8002.7694581314. The cubic root of 64044319 is about 400.0923099455.

The spelling of 64044319 in words is "sixty-four million, forty-four thousand, three hundred nineteen".