64627223 has 4 divisors (see below), whose sum is σ = 64649880. Its totient is φ = 64604568.

The previous prime is 64627207. The next prime is 64627231. The reversal of 64627223 is 32272646.

64627223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 64627223 - 2⁴ = 64627207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64627223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64624223) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6308 + ... + 13001.

It is an arithmetic number, because the mean of its divisors is an integer number (16162470).

Almost surely, 2^64627223 is an apocalyptic number.

64627223 is a deficient number, since it is larger than the sum of its proper divisors (22657).

64627223 is a wasteful number, since it uses less digits than its factorization.

64627223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22656.

The product of its digits is 24192, while the sum is 32.

The square root of 64627223 is about 8039.1058582407. The cubic root of 64627223 is about 401.3024689169.

Adding to 64627223 its reverse (32272646), we get a palindrome (96899869).

The spelling of 64627223 in words is "sixty-four million, six hundred twenty-seven thousand, two hundred twenty-three".