63648223 has 2 divisors, whose sum is σ = 63648224. Its totient is φ = 63648222.

The previous prime is 63648173. The next prime is 63648227. The reversal of 63648223 is 32284636.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63648223 - 2²¹ = 61551071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63648227) 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 as a sum of consecutive naturals, namely, 31824111 + 31824112.

It is an arithmetic number, because the mean of its divisors is an integer number (31824112).

Almost surely, 2^63648223 is an apocalyptic number.

63648223 is a deficient number, since it is larger than the sum of its proper divisors (1).

63648223 is an equidigital number, since it uses as much as digits as its factorization.

63648223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 34.

The square root of 63648223 is about 7977.9836425002. The cubic root of 63648223 is about 399.2657843932.

The spelling of 63648223 in words is "sixty-three million, six hundred forty-eight thousand, two hundred twenty-three".