63444872 has 16 divisors (see below), whose sum is σ = 119869200. Its totient is φ = 31479760.

The previous prime is 63444863. The next prime is 63444907. The reversal of 63444872 is 27844436.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29222 + ... + 31317.

It is an arithmetic number, because the mean of its divisors is an integer number (7491825).

Almost surely, 2^63444872 is an apocalyptic number.

It is an amenable number.

63444872 is a deficient number, since it is larger than the sum of its proper divisors (56424328).

63444872 is a wasteful number, since it uses less digits than its factorization.

63444872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60676 (or 60672 counting only the distinct ones).

The product of its digits is 129024, while the sum is 38.

The square root of 63444872 is about 7965.2289358185. The cubic root of 63444872 is about 398.8401232993.

The spelling of 63444872 in words is "sixty-three million, four hundred forty-four thousand, eight hundred seventy-two".