810860085 has 48 divisors (see below), whose sum is σ = 1676894400. Its totient is φ = 370675872.

The previous prime is 810860053. The next prime is 810860107. The reversal of 810860085 is 580068018.

810860085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 810860085 - 2⁵ = 810860053 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54675 + ... + 67904.

It is an arithmetic number, because the mean of its divisors is an integer number (34935300).

Almost surely, 2^810860085 is an apocalyptic number.

It is an amenable number.

810860085 is an abundant number, since it is smaller than the sum of its proper divisors (866034315).

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

810860085 is a wasteful number, since it uses less digits than its factorization.

810860085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122607 (or 122594 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 810860085 is about 28475.6050857572. The cubic root of 810860085 is about 932.4995713808.

The spelling of 810860085 in words is "eight hundred ten million, eight hundred sixty thousand, eighty-five".