64373345 has 4 divisors (see below), whose sum is σ = 77248020. Its totient is φ = 51498672.

The previous prime is 64373327. The next prime is 64373347. The reversal of 64373345 is 54337346.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50183056 + 14190289 = 7084^2 + 3767^2 .

It is a cyclic number.

It is not a de Polignac number, because 64373345 - 2²⁰ = 63324769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64373347) 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, 6437330 + ... + 6437339.

It is an arithmetic number, because the mean of its divisors is an integer number (19312005).

Almost surely, 2^64373345 is an apocalyptic number.

It is an amenable number.

64373345 is a deficient number, since it is larger than the sum of its proper divisors (12874675).

64373345 is a wasteful number, since it uses less digits than its factorization.

64373345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12874674.

The product of its digits is 90720, while the sum is 35.

The square root of 64373345 is about 8023.3001314920. The cubic root of 64373345 is about 400.7762945257.

The spelling of 64373345 in words is "sixty-four million, three hundred seventy-three thousand, three hundred forty-five".