63783963 has 36 divisors (see below), whose sum is σ = 99746920. Its totient is φ = 40281696.

The previous prime is 63783961. The next prime is 63783971. The reversal of 63783963 is 36938736.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

63783963 is a `hidden beast` number, since 637 + 8 + 3 + 9 + 6 + 3 = 666.

63783963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63783963 - 2¹ = 63783961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63783961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1203445 + ... + 1203497.

Almost surely, 2^63783963 is an apocalyptic number.

63783963 is a deficient number, since it is larger than the sum of its proper divisors (35962957).

63783963 is an equidigital number, since it uses as much as digits as its factorization.

63783963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 85 counting only the distinct ones).

The product of its digits is 489888, while the sum is 45.

The square root of 63783963 is about 7986.4862737001. The cubic root of 63783963 is about 399.5494155414.

It can be divided in two parts, 63783 and 963, that added together give a palindrome (64746).

The spelling of 63783963 in words is "sixty-three million, seven hundred eighty-three thousand, nine hundred sixty-three".