812086 has 8 divisors (see below), whose sum is σ = 1328904. Its totient is φ = 369120.

The previous prime is 812081. The next prime is 812101. The reversal of 812086 is 680218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 812086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18435 + ... + 18478.

It is an arithmetic number, because the mean of its divisors is an integer number (166113).

2⁸¹²⁰⁸⁶ is an apocalyptic number.

812086 is a deficient number, since it is larger than the sum of its proper divisors (516818).

812086 is a wasteful number, since it uses less digits than its factorization.

812086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36926.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 812086 is about 901.1581437240. The cubic root of 812086 is about 93.2969274112.

The spelling of 812086 in words is "eight hundred twelve thousand, eighty-six".