64364505 has 32 divisors (see below), whose sum is σ = 104901888. Its totient is φ = 33696000.

The previous prime is 64364491. The next prime is 64364527. The reversal of 64364505 is 50546346.

It is not a de Polignac number, because 64364505 - 2⁵ = 64364473 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 (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355515 + ... + 355695.

It is an arithmetic number, because the mean of its divisors is an integer number (3278184).

Almost surely, 2^64364505 is an apocalyptic number.

It is an amenable number.

64364505 is a deficient number, since it is larger than the sum of its proper divisors (40537383).

64364505 is a wasteful number, since it uses less digits than its factorization.

64364505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 64364505 is about 8022.7492170702. The cubic root of 64364505 is about 400.7579482955.

The spelling of 64364505 in words is "sixty-four million, three hundred sixty-four thousand, five hundred five".