64328393 has 2 divisors, whose sum is σ = 64328394. Its totient is φ = 64328392.

The previous prime is 64328377. The next prime is 64328413. The reversal of 64328393 is 39382346.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35081929 + 29246464 = 5923^2 + 5408^2 .

It is a cyclic number.

It is not a de Polignac number, because 64328393 - 2⁴ = 64328377 is a prime.

It is not a weakly prime, because it can be changed into another prime (64328333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32164196 + 32164197.

It is an arithmetic number, because the mean of its divisors is an integer number (32164197).

Almost surely, 2^64328393 is an apocalyptic number.

It is an amenable number.

64328393 is a deficient number, since it is larger than the sum of its proper divisors (1).

64328393 is an equidigital number, since it uses as much as digits as its factorization.

64328393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 38.

The square root of 64328393 is about 8020.4983012279. The cubic root of 64328393 is about 400.6829852475.

The spelling of 64328393 in words is "sixty-four million, three hundred twenty-eight thousand, three hundred ninety-three".