64344345 has 32 divisors (see below), whose sum is σ = 111331584. Its totient is φ = 31545600.

The previous prime is 64344341. The next prime is 64344361. The reversal of 64344345 is 54344346.

It is not a de Polignac number, because 64344345 - 2² = 64344341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64344341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60115 + ... + 61175.

It is an arithmetic number, because the mean of its divisors is an integer number (3479112).

Almost surely, 2^64344345 is an apocalyptic number.

64344345 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64344345 is a deficient number, since it is larger than the sum of its proper divisors (46987239).

64344345 is a wasteful number, since it uses less digits than its factorization.

64344345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393.

The product of its digits is 69120, while the sum is 33.

The square root of 64344345 is about 8021.4926915132. The cubic root of 64344345 is about 400.7161026441.

Subtracting from 64344345 its reverse (54344346), we obtain a palindrome (9999999).

The spelling of 64344345 in words is "sixty-four million, three hundred forty-four thousand, three hundred forty-five".