63643112 has 16 divisors (see below), whose sum is σ = 128510340. Its totient is φ = 29373696.

The previous prime is 63643109. The next prime is 63643117. The reversal of 63643112 is 21134636.

It can be written as a sum of positive squares in 2 ways, for example, as 63266116 + 376996 = 7954^2 + 614^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (63643117) 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, 305873 + ... + 306080.

Almost surely, 2^63643112 is an apocalyptic number.

It is an amenable number.

63643112 is an abundant number, since it is smaller than the sum of its proper divisors (64867228).

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

63643112 is a wasteful number, since it uses less digits than its factorization.

63643112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611972 (or 611968 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 63643112 is about 7977.6633170371. The cubic root of 63643112 is about 399.2550969932.

Adding to 63643112 its reverse (21134636), we get a palindrome (84777748).

The spelling of 63643112 in words is "sixty-three million, six hundred forty-three thousand, one hundred twelve".