20086684 has 12 divisors (see below), whose sum is σ = 35356104. Its totient is φ = 9984944.

The previous prime is 20086657. The next prime is 20086699. The reversal of 20086684 is 48668002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13822 + ... + 15205.

It is an arithmetic number, because the mean of its divisors is an integer number (2946342).

Almost surely, 2^20086684 is an apocalyptic number.

It is an amenable number.

20086684 is a deficient number, since it is larger than the sum of its proper divisors (15269420).

20086684 is a wasteful number, since it uses less digits than its factorization.

20086684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29204 (or 29202 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 20086684 is about 4481.8170422274. The cubic root of 20086684 is about 271.8333574129.

The spelling of 20086684 in words is "twenty million, eighty-six thousand, six hundred eighty-four".