20085886 has 4 divisors (see below), whose sum is σ = 30128832. Its totient is φ = 10042942.

The previous prime is 20085881. The next prime is 20085889. The reversal of 20085886 is 68858002.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20085881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5021470 + ... + 5021473.

It is an arithmetic number, because the mean of its divisors is an integer number (7532208).

Almost surely, 2^20085886 is an apocalyptic number.

20085886 is a deficient number, since it is larger than the sum of its proper divisors (10042946).

20085886 is a wasteful number, since it uses less digits than its factorization.

20085886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10042945.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 20085886 is about 4481.7280149514. The cubic root of 20085886 is about 271.8297575838.

The spelling of 20085886 in words is "twenty million, eighty-five thousand, eight hundred eighty-six".