63963612 has 18 divisors (see below), whose sum is σ = 161685888. Its totient is φ = 21321192.

The previous prime is 63963607. The next prime is 63963619. The reversal of 63963612 is 21636936.

63963612 is a `hidden beast` number, since 6 + 3 + 9 + 636 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1776767 = 63963612 / (6 + 3 + 9 + 6 + 3 + 6 + 1 + 2).

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63963619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 888348 + ... + 888419.

Almost surely, 2^63963612 is an apocalyptic number.

It is an amenable number.

63963612 is an abundant number, since it is smaller than the sum of its proper divisors (97722276).

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

63963612 is a wasteful number, since it uses less digits than its factorization.

63963612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776777 (or 1776772 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 63963612 is about 7997.7254266448. The cubic root of 63963612 is about 399.9241772949.

The spelling of 63963612 in words is "sixty-three million, nine hundred sixty-three thousand, six hundred twelve".