63678006 has 96 divisors (see below), whose sum is σ = 168879360. Its totient is φ = 16936128.

The previous prime is 63678001. The next prime is 63678019. The reversal of 63678006 is 60087636.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63678001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 160200 + ... + 160596.

It is an arithmetic number, because the mean of its divisors is an integer number (1759160).

Almost surely, 2^63678006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63678006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84439680).

63678006 is an abundant number, since it is smaller than the sum of its proper divisors (105201354).

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

63678006 is a wasteful number, since it uses less digits than its factorization.

63678006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 495 counting only the distinct ones).

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

The square root of 63678006 is about 7979.8499985902. The cubic root of 63678006 is about 399.3280510101.

The spelling of 63678006 in words is "sixty-three million, six hundred seventy-eight thousand, six".