63912966 has 32 divisors (see below), whose sum is σ = 138686688. Its totient is φ = 19518720.

The previous prime is 63912943. The next prime is 63912967. The reversal of 63912966 is 66921936.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63912967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7696 + ... + 13676.

It is an arithmetic number, because the mean of its divisors is an integer number (4333959).

Almost surely, 2^63912966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63912966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69343344).

63912966 is an abundant number, since it is smaller than the sum of its proper divisors (74773722).

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

63912966 is a wasteful number, since it uses less digits than its factorization.

63912966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6136.

The product of its digits is 104976, while the sum is 42.

The square root of 63912966 is about 7994.5585243965. The cubic root of 63912966 is about 399.8185969114.

The spelling of 63912966 in words is "sixty-three million, nine hundred twelve thousand, nine hundred sixty-six".