64336393 has 4 divisors (see below), whose sum is σ = 70185168. Its totient is φ = 58487620.

The previous prime is 64336361. The next prime is 64336397. The reversal of 64336393 is 39363346.

64336393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64336393 - 2⁵ = 64336361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64336397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2924371 + ... + 2924392.

It is an arithmetic number, because the mean of its divisors is an integer number (17546292).

Almost surely, 2^64336393 is an apocalyptic number.

It is an amenable number.

64336393 is a deficient number, since it is larger than the sum of its proper divisors (5848775).

64336393 is a wasteful number, since it uses less digits than its factorization.

64336393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5848774.

The product of its digits is 104976, while the sum is 37.

The square root of 64336393 is about 8020.9970078538. The cubic root of 64336393 is about 400.6995944557.

The spelling of 64336393 in words is "sixty-four million, three hundred thirty-six thousand, three hundred ninety-three".