63317623 has 4 divisors (see below), whose sum is σ = 63970480. Its totient is φ = 62664768.

The previous prime is 63317609. The next prime is 63317627. The reversal of 63317623 is 32671336.

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 63317623 - 2⁵ = 63317591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63317627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326283 + ... + 326476.

It is an arithmetic number, because the mean of its divisors is an integer number (15992620).

Almost surely, 2^63317623 is an apocalyptic number.

63317623 is a deficient number, since it is larger than the sum of its proper divisors (652857).

63317623 is an equidigital number, since it uses as much as digits as its factorization.

63317623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652856.

The product of its digits is 13608, while the sum is 31.

The square root of 63317623 is about 7957.2371461456. The cubic root of 63317623 is about 398.5732986079.

Adding to 63317623 its reverse (32671336), we get a palindrome (95988959).

The spelling of 63317623 in words is "sixty-three million, three hundred seventeen thousand, six hundred twenty-three".