64652223 has 8 divisors (see below), whose sum is σ = 89175600. Its totient is φ = 41615168.

The previous prime is 64652219. The next prime is 64652239. The reversal of 64652223 is 32225646.

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 64652223 - 2² = 64652219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64652243) 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, 371478 + ... + 371651.

It is an arithmetic number, because the mean of its divisors is an integer number (11146950).

Almost surely, 2^64652223 is an apocalyptic number.

64652223 is a deficient number, since it is larger than the sum of its proper divisors (24523377).

64652223 is a wasteful number, since it uses less digits than its factorization.

64652223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743161.

The product of its digits is 17280, while the sum is 30.

The square root of 64652223 is about 8040.6606071889. The cubic root of 64652223 is about 401.3542080442.

Adding to 64652223 its reverse (32225646), we get a palindrome (96877869).

The spelling of 64652223 in words is "sixty-four million, six hundred fifty-two thousand, two hundred twenty-three".