64320063 has 8 divisors (see below), whose sum is σ = 85804800. Its totient is φ = 42857688.

The previous prime is 64320041. The next prime is 64320077. The reversal of 64320063 is 36002346.

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

It is not a de Polignac number, because 64320063 - 2¹⁰ = 64319039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64320013) by changing a digit.

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, 3018 + ... + 11736.

It is an arithmetic number, because the mean of its divisors is an integer number (10725600).

Almost surely, 2^64320063 is an apocalyptic number.

64320063 is a deficient number, since it is larger than the sum of its proper divisors (21484737).

64320063 is a wasteful number, since it uses less digits than its factorization.

64320063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11181.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 64320063 is about 8019.9789899974. The cubic root of 64320063 is about 400.6656894460.

It can be divided in two parts, 643 and 20063, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 64320063 in words is "sixty-four million, three hundred twenty thousand, sixty-three".