63986424 has 16 divisors (see below), whose sum is σ = 159966120. Its totient is φ = 21328800.

The previous prime is 63986413. The next prime is 63986467. The reversal of 63986424 is 42468936.

It is a happy number.

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, 1333027 + ... + 1333074.

Almost surely, 2^63986424 is an apocalyptic number.

It is an amenable number.

63986424 is an abundant number, since it is smaller than the sum of its proper divisors (95979696).

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

63986424 is a wasteful number, since it uses less digits than its factorization.

63986424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2666110 (or 2666106 counting only the distinct ones).

The product of its digits is 248832, while the sum is 42.

The square root of 63986424 is about 7999.1514549982. The cubic root of 63986424 is about 399.9717146666.

The spelling of 63986424 in words is "sixty-three million, nine hundred eighty-six thousand, four hundred twenty-four".