63661714 has 16 divisors (see below), whose sum is σ = 97326360. Its totient is φ = 31225600.

The previous prime is 63661711. The next prime is 63661721. The reversal of 63661714 is 41716636.

It can be written as a sum of positive squares in 4 ways, for example, as 55726225 + 7935489 = 7465^2 + 2817^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 63661714.

It is not an unprimeable number, because it can be changed into a prime (63661711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21432 + ... + 24220.

Almost surely, 2^63661714 is an apocalyptic number.

63661714 is a deficient number, since it is larger than the sum of its proper divisors (33664646).

63661714 is a wasteful number, since it uses less digits than its factorization.

63661714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005.

The product of its digits is 18144, while the sum is 34.

The square root of 63661714 is about 7978.8291120941. The cubic root of 63661714 is about 399.2939921153.

The spelling of 63661714 in words is "sixty-three million, six hundred sixty-one thousand, seven hundred fourteen".