64334865 has 16 divisors (see below), whose sum is σ = 117641088. Its totient is φ = 29410176.

The previous prime is 64334843. The next prime is 64334873. The reversal of 64334865 is 56843346.

64334865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64334865 - 2⁶ = 64334801 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306252 + ... + 306461.

It is an arithmetic number, because the mean of its divisors is an integer number (7352568).

Almost surely, 2^64334865 is an apocalyptic number.

It is an amenable number.

64334865 is a deficient number, since it is larger than the sum of its proper divisors (53306223).

64334865 is a wasteful number, since it uses less digits than its factorization.

64334865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612728.

The product of its digits is 207360, while the sum is 39.

The square root of 64334865 is about 8020.9017572839. The cubic root of 64334865 is about 400.6964222033.

The spelling of 64334865 in words is "sixty-four million, three hundred thirty-four thousand, eight hundred sixty-five".