63423636 has 24 divisors (see below), whose sum is σ = 148130304. Its totient is φ = 21120960.

The previous prime is 63423631. The next prime is 63423637. The reversal of 63423636 is 63632436.

63423636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 63423597 and 63423606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63423631) 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 7 ways as a sum of consecutive naturals, for example, 15856 + ... + 19448.

It is an arithmetic number, because the mean of its divisors is an integer number (6172096).

Almost surely, 2^63423636 is an apocalyptic number.

It is an amenable number.

63423636 is an abundant number, since it is smaller than the sum of its proper divisors (84706668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63423636 is a wasteful number, since it uses less digits than its factorization.

63423636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5071 (or 5069 counting only the distinct ones).

The product of its digits is 46656, while the sum is 33.

The square root of 63423636 is about 7963.8957803326. The cubic root of 63423636 is about 398.7956189721.

The spelling of 63423636 in words is "sixty-three million, four hundred twenty-three thousand, six hundred thirty-six".