63438966 has 12 divisors (see below), whose sum is σ = 137451132. Its totient is φ = 21146316.

The previous prime is 63438959. The next prime is 63439003. The reversal of 63438966 is 66983436.

63438966 is a `hidden beast` number, since 634 + 3 + 8 + 9 + 6 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1762176 + ... + 1762211.

It is an arithmetic number, because the mean of its divisors is an integer number (11454261).

Almost surely, 2^63438966 is an apocalyptic number.

63438966 is an abundant number, since it is smaller than the sum of its proper divisors (74012166).

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

63438966 is a wasteful number, since it uses less digits than its factorization.

63438966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3524395 (or 3524392 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 63438966 is about 7964.8581908280. The cubic root of 63438966 is about 398.8277470804.

The spelling of 63438966 in words is "sixty-three million, four hundred thirty-eight thousand, nine hundred sixty-six".