63818106 has 64 divisors (see below), whose sum is σ = 144460800. Its totient is φ = 18627840.

The previous prime is 63818087. The next prime is 63818113. The reversal of 63818106 is 60181836.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 320595 + ... + 320793.

It is an arithmetic number, because the mean of its divisors is an integer number (2257200).

Almost surely, 2^63818106 is an apocalyptic number.

63818106 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 63818106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72230400).

63818106 is an abundant number, since it is smaller than the sum of its proper divisors (80642694).

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

63818106 is a wasteful number, since it uses less digits than its factorization.

63818106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 63818106 is about 7988.6235360042. The cubic root of 63818106 is about 399.6206945989.

The spelling of 63818106 in words is "sixty-three million, eight hundred eighteen thousand, one hundred six".