104809986 has 36 divisors (see below), whose sum is σ = 230111622. Its totient is φ = 34474944.

The previous prime is 104809967. The next prime is 104810003. The reversal of 104809986 is 689908401.

104809986 is a `hidden beast` number, since 1 + 0 + 480 + 99 + 86 = 666.

It can be written as a sum of positive squares in only one way, i.e., 104346225 + 463761 = 10215^2 + 681^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 461605 + ... + 461831.

Almost surely, 2^104809986 is an apocalyptic number.

104809986 is an abundant number, since it is smaller than the sum of its proper divisors (125301636).

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

104809986 is a wasteful number, since it uses less digits than its factorization.

104809986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 104809986 is about 10237.6748336720. The cubic root of 104809986 is about 471.4846459076.

The spelling of 104809986 in words is "one hundred four million, eight hundred nine thousand, nine hundred eighty-six".