104638866 has 16 divisors (see below), whose sum is σ = 214145184. Its totient is φ = 34068384.

The previous prime is 104638861. The next prime is 104638879. The reversal of 104638866 is 668836401.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (104638861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202531 + ... + 203046.

It is an arithmetic number, because the mean of its divisors is an integer number (13384074).

Almost surely, 2^104638866 is an apocalyptic number.

104638866 is an abundant number, since it is smaller than the sum of its proper divisors (109506318).

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

104638866 is a wasteful number, since it uses less digits than its factorization.

104638866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405625.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 104638866 is about 10229.3140532491. The cubic root of 104638866 is about 471.2279133713.

The spelling of 104638866 in words is "one hundred four million, six hundred thirty-eight thousand, eight hundred sixty-six".