63963916 has 12 divisors (see below), whose sum is σ = 112037632. Its totient is φ = 31953168.

The previous prime is 63963901. The next prime is 63963917. The reversal of 63963916 is 61936936.

It is not an unprimeable number, because it can be changed into a prime (63963917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1740 + ... + 11443.

Almost surely, 2^63963916 is an apocalyptic number.

It is an amenable number.

63963916 is a deficient number, since it is larger than the sum of its proper divisors (48073716).

63963916 is a wasteful number, since it uses less digits than its factorization.

63963916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14400 (or 14398 counting only the distinct ones).

The product of its digits is 157464, while the sum is 43.

The square root of 63963916 is about 7997.7444320258. The cubic root of 63963916 is about 399.9248108674.

The spelling of 63963916 in words is "sixty-three million, nine hundred sixty-three thousand, nine hundred sixteen".