64344193 has 4 divisors (see below), whose sum is σ = 64360240. Its totient is φ = 64328148.

The previous prime is 64344151. The next prime is 64344307. The reversal of 64344193 is 39144346.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 64344193 - 2²⁵ = 30789761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64344113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3778 + ... + 11956.

It is an arithmetic number, because the mean of its divisors is an integer number (16090060).

Almost surely, 2^64344193 is an apocalyptic number.

It is an amenable number.

64344193 is a deficient number, since it is larger than the sum of its proper divisors (16047).

64344193 is an equidigital number, since it uses as much as digits as its factorization.

64344193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16046.

The product of its digits is 31104, while the sum is 34.

The square root of 64344193 is about 8021.4832169618. The cubic root of 64344193 is about 400.7157871080.

The spelling of 64344193 in words is "sixty-four million, three hundred forty-four thousand, one hundred ninety-three".