64303345 has 4 divisors (see below), whose sum is σ = 77164020. Its totient is φ = 51442672.

The previous prime is 64303339. The next prime is 64303381. The reversal of 64303345 is 54330346.

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 21492496 + 42810849 = 4636^2 + 6543^2 .

It is a cyclic number.

It is not a de Polignac number, because 64303345 - 2⁵ = 64303313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6430330 + ... + 6430339.

It is an arithmetic number, because the mean of its divisors is an integer number (19291005).

Almost surely, 2^64303345 is an apocalyptic number.

It is an amenable number.

64303345 is a deficient number, since it is larger than the sum of its proper divisors (12860675).

64303345 is a wasteful number, since it uses less digits than its factorization.

64303345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12860674.

The product of its (nonzero) digits is 12960, while the sum is 28.

The square root of 64303345 is about 8018.9366502049. The cubic root of 64303345 is about 400.6309729096.

The spelling of 64303345 in words is "sixty-four million, three hundred three thousand, three hundred forty-five".