806081508 has 18 divisors (see below), whose sum is σ = 2037595014. Its totient is φ = 268693824.

The previous prime is 806081491. The next prime is 806081527. The reversal of 806081508 is 805180608.

It can be written as a sum of positive squares in only one way, i.e., 674337024 + 131744484 = 25968^2 + 11478^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 22391153 = 806081508 / (8 + 0 + 6 + 0 + 8 + 1 + 5 + 0 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11195541 + ... + 11195612.

It is an arithmetic number, because the mean of its divisors is an integer number (113199723).

Almost surely, 2^806081508 is an apocalyptic number.

It is an amenable number.

806081508 is an abundant number, since it is smaller than the sum of its proper divisors (1231513506).

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

806081508 is a wasteful number, since it uses less digits than its factorization.

806081508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22391163 (or 22391158 counting only the distinct ones).

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

The square root of 806081508 is about 28391.5745952915. The cubic root of 806081508 is about 930.6641527118.

The spelling of 806081508 in words is "eight hundred six million, eighty-one thousand, five hundred eight".