64443063 has 8 divisors (see below), whose sum is σ = 87752448. Its totient is φ = 42047864.

The previous prime is 64443061. The next prime is 64443097. The reversal of 64443063 is 36034446.

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 64443063 - 2¹ = 64443061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64443063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64443061) 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, 228381 + ... + 228662.

It is an arithmetic number, because the mean of its divisors is an integer number (10969056).

Almost surely, 2^64443063 is an apocalyptic number.

64443063 is a deficient number, since it is larger than the sum of its proper divisors (23309385).

64443063 is a wasteful number, since it uses less digits than its factorization.

64443063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457093.

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 64443063 is about 8027.6436766962. The cubic root of 64443063 is about 400.9209260276.

The spelling of 64443063 in words is "sixty-four million, four hundred forty-three thousand, sixty-three".