64804565 has 8 divisors (see below), whose sum is σ = 88874880. Its totient is φ = 44437392.

The previous prime is 64804543. The next prime is 64804609. The reversal of 64804565 is 56540846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64804565 - 2¹⁴ = 64788181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925745 + ... + 925814.

It is an arithmetic number, because the mean of its divisors is an integer number (11109360).

Almost surely, 2^64804565 is an apocalyptic number.

It is an amenable number.

64804565 is a deficient number, since it is larger than the sum of its proper divisors (24070315).

64804565 is a wasteful number, since it uses less digits than its factorization.

64804565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851571.

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 64804565 is about 8050.1282598478. The cubic root of 64804565 is about 401.6692018075.

The spelling of 64804565 in words is "sixty-four million, eight hundred four thousand, five hundred sixty-five".