20086847 has 12 divisors (see below), whose sum is σ = 22296120. Its totient is φ = 18081360.

The previous prime is 20086831. The next prime is 20086849. The reversal of 20086847 is 74868002.

It is not a de Polignac number, because 20086847 - 2⁴ = 20086831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20086849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12428 + ... + 13950.

It is an arithmetic number, because the mean of its divisors is an integer number (1858010).

Almost surely, 2^20086847 is an apocalyptic number.

20086847 is a deficient number, since it is larger than the sum of its proper divisors (2209273).

20086847 is a wasteful number, since it uses less digits than its factorization.

20086847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654 (or 1643 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 20086847 is about 4481.8352267793. The cubic root of 20086847 is about 271.8340927046.

The spelling of 20086847 in words is "twenty million, eighty-six thousand, eight hundred forty-seven".