63983438 has 4 divisors (see below), whose sum is σ = 95975160. Its totient is φ = 31991718.

The previous prime is 63983417. The next prime is 63983453. The reversal of 63983438 is 83438936.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15995858 + ... + 15995861.

It is an arithmetic number, because the mean of its divisors is an integer number (23993790).

Almost surely, 2^63983438 is an apocalyptic number.

63983438 is a deficient number, since it is larger than the sum of its proper divisors (31991722).

63983438 is a wasteful number, since it uses less digits than its factorization.

63983438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31991721.

The product of its digits is 373248, while the sum is 44.

The square root of 63983438 is about 7998.9648080236. The cubic root of 63983438 is about 399.9654928566.

The spelling of 63983438 in words is "sixty-three million, nine hundred eighty-three thousand, four hundred thirty-eight".