64473063 has 4 divisors (see below), whose sum is σ = 85964088. Its totient is φ = 42982040.

The previous prime is 64473037. The next prime is 64473077. The reversal of 64473063 is 36037446.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64473063 - 2¹⁰ = 64472039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64473263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10745508 + ... + 10745513.

It is an arithmetic number, because the mean of its divisors is an integer number (21491022).

Almost surely, 2^64473063 is an apocalyptic number.

64473063 is a deficient number, since it is larger than the sum of its proper divisors (21491025).

64473063 is a wasteful number, since it uses less digits than its factorization.

64473063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21491024.

The product of its (nonzero) digits is 36288, while the sum is 33.

The square root of 64473063 is about 8029.5120026064. The cubic root of 64473063 is about 400.9831295776.

The spelling of 64473063 in words is "sixty-four million, four hundred seventy-three thousand, sixty-three".