63831968 has 24 divisors (see below), whose sum is σ = 126090468. Its totient is φ = 31809024.

The previous prime is 63831947. The next prime is 63832033. The reversal of 63831968 is 86913836.

It can be written as a sum of positive squares in 2 ways, for example, as 61905424 + 1926544 = 7868^2 + 1388^2 .

It is a super-4 number, since 4×63831968⁴ (a number of 32 digits) contains 4444 as substring.

It is a zygodrome in base 3.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6830 + ... + 13202.

Almost surely, 2^63831968 is an apocalyptic number.

It is an amenable number.

63831968 is a deficient number, since it is larger than the sum of its proper divisors (62258500).

63831968 is a wasteful number, since it uses less digits than its factorization.

63831968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6696 (or 6688 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The square root of 63831968 is about 7989.4910976858. The cubic root of 63831968 is about 399.6496265190.

The spelling of 63831968 in words is "sixty-three million, eight hundred thirty-one thousand, nine hundred sixty-eight".