63668700 has 72 divisors (see below), whose sum is σ = 204691760. Its totient is φ = 16977600.

The previous prime is 63668653. The next prime is 63668701. The reversal of 63668700 is 786636.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63668701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9091 + ... + 14490.

Almost surely, 2^63668700 is an apocalyptic number.

63668700 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63668700 is an abundant number, since it is smaller than the sum of its proper divisors (141023060).

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

63668700 is a wasteful number, since it uses less digits than its factorization.

63668700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23604 (or 23591 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 63668700 is about 7979.2668836178. The cubic root of 63668700 is about 399.3085972609.

The spelling of 63668700 in words is "sixty-three million, six hundred sixty-eight thousand, seven hundred".