63879938 has 16 divisors (see below), whose sum is σ = 101200320. Its totient is φ = 30157776.

The previous prime is 63879887. The next prime is 63879943. The reversal of 63879938 is 83997836.

It is a self number, because there is not a number n which added to its sum of digits gives 63879938.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9395 + ... + 14697.

It is an arithmetic number, because the mean of its divisors is an integer number (6325020).

Almost surely, 2^63879938 is an apocalyptic number.

63879938 is a deficient number, since it is larger than the sum of its proper divisors (37320382).

63879938 is a wasteful number, since it uses less digits than its factorization.

63879938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5641.

The product of its digits is 1959552, while the sum is 53.

The square root of 63879938 is about 7992.4926024364. The cubic root of 63879938 is about 399.7497142586.

The spelling of 63879938 in words is "sixty-three million, eight hundred seventy-nine thousand, nine hundred thirty-eight".