64475805 has 8 divisors (see below), whose sum is σ = 103161312. Its totient is φ = 34387088.

The previous prime is 64475779. The next prime is 64475813. The reversal of 64475805 is 50857446.

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 64475805 - 2⁵ = 64475773 is a prime.

It is a Curzon number.

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, 2149179 + ... + 2149208.

It is an arithmetic number, because the mean of its divisors is an integer number (12895164).

Almost surely, 2^64475805 is an apocalyptic number.

It is an amenable number.

64475805 is a deficient number, since it is larger than the sum of its proper divisors (38685507).

64475805 is a wasteful number, since it uses less digits than its factorization.

64475805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4298395.

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 64475805 is about 8029.6827459122. The cubic root of 64475805 is about 400.9888140196.

The spelling of 64475805 in words is "sixty-four million, four hundred seventy-five thousand, eight hundred five".