12805086 has 16 divisors (see below), whose sum is σ = 29268864. Its totient is φ = 3658584.

The previous prime is 12805081. The next prime is 12805087. The reversal of 12805086 is 68050821.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12805081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152400 + ... + 152483.

It is an arithmetic number, because the mean of its divisors is an integer number (1829304).

Almost surely, 2^12805086 is an apocalyptic number.

12805086 is an abundant number, since it is smaller than the sum of its proper divisors (16463778).

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

12805086 is a wasteful number, since it uses less digits than its factorization.

12805086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304895.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 12805086 is about 3578.4194835150. The cubic root of 12805086 is about 233.9523973590.

The spelling of 12805086 in words is "twelve million, eight hundred five thousand, eighty-six".