63708966 has 12 divisors (see below), whose sum is σ = 138036132. Its totient is φ = 21236316.

The previous prime is 63708961. The next prime is 63708971. The reversal of 63708966 is 66980736.

63708966 is a `hidden beast` number, since 637 + 0 + 8 + 9 + 6 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (63708961) and next prime (63708971).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63708961) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1769676 + ... + 1769711.

It is an arithmetic number, because the mean of its divisors is an integer number (11503011).

Almost surely, 2^63708966 is an apocalyptic number.

63708966 is an abundant number, since it is smaller than the sum of its proper divisors (74327166).

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

63708966 is a wasteful number, since it uses less digits than its factorization.

63708966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3539395 (or 3539392 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 63708966 is about 7981.7896489447. The cubic root of 63708966 is about 399.3927577754.

The spelling of 63708966 in words is "sixty-three million, seven hundred eight thousand, nine hundred sixty-six".