63924638 has 8 divisors (see below), whose sum is σ = 96260832. Its totient is φ = 31837696.

The previous prime is 63924631. The next prime is 63924647. The reversal of 63924638 is 83642936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 63924595 and 63924604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63924631) 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 in 3 ways as a sum of consecutive naturals, for example, 61670 + ... + 62697.

It is an arithmetic number, because the mean of its divisors is an integer number (12032604).

Almost surely, 2^63924638 is an apocalyptic number.

63924638 is a deficient number, since it is larger than the sum of its proper divisors (32336194).

63924638 is a wasteful number, since it uses less digits than its factorization.

63924638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124626.

The product of its digits is 186624, while the sum is 41.

The square root of 63924638 is about 7995.2884876032. The cubic root of 63924638 is about 399.8429341672.

The spelling of 63924638 in words is "sixty-three million, nine hundred twenty-four thousand, six hundred thirty-eight".