63872636 has 6 divisors (see below), whose sum is σ = 111777120. Its totient is φ = 31936316.

The previous prime is 63872609. The next prime is 63872639. The reversal of 63872636 is 63627836.

It is a junction number, because it is equal to n+sod(n) for n = 63872593 and 63872602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63872639) 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, 7984076 + ... + 7984083.

It is an arithmetic number, because the mean of its divisors is an integer number (18629520).

Almost surely, 2^63872636 is an apocalyptic number.

It is an amenable number.

63872636 is a deficient number, since it is larger than the sum of its proper divisors (47904484).

63872636 is a wasteful number, since it uses less digits than its factorization.

63872636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15968163 (or 15968161 counting only the distinct ones).

The product of its digits is 217728, while the sum is 41.

The square root of 63872636 is about 7992.0357857057. The cubic root of 63872636 is about 399.7344821230.

The spelling of 63872636 in words is "sixty-three million, eight hundred seventy-two thousand, six hundred thirty-six".