63223636 has 12 divisors (see below), whose sum is σ = 126447328. Its totient is φ = 27095832.

The previous prime is 63223609. The next prime is 63223649. The reversal of 63223636 is 63632236.

63223636 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 63223598 and 63223607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128966 + ... + 1129021.

Almost surely, 2^63223636 is an apocalyptic number.

It is an amenable number.

63223636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

63223636 is a wasteful number, since it uses less digits than its factorization.

63223636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257998 (or 2257996 counting only the distinct ones).

The product of its digits is 23328, while the sum is 31.

The square root of 63223636 is about 7951.3291970588. The cubic root of 63223636 is about 398.3759904054.

The spelling of 63223636 in words is "sixty-three million, two hundred twenty-three thousand, six hundred thirty-six".