8085881 has 4 divisors (see below), whose sum is σ = 8094564. Its totient is φ = 8077200.

The previous prime is 8085859. The next prime is 8085893. The reversal of 8085881 is 1885808.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6330256 + 1755625 = 2516^2 + 1325^2 .

It is a cyclic number.

It is not a de Polignac number, because 8085881 - 2⁶ = 8085817 is a prime.

It is a super-2 number, since 2×8085881² = 130762943092322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8085821) 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, 2750 + ... + 4871.

It is an arithmetic number, because the mean of its divisors is an integer number (2023641).

Almost surely, 2^8085881 is an apocalyptic number.

It is an amenable number.

8085881 is a deficient number, since it is larger than the sum of its proper divisors (8683).

8085881 is a wasteful number, since it uses less digits than its factorization.

8085881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8682.

The product of its (nonzero) digits is 20480, while the sum is 38.

The square root of 8085881 is about 2843.5683568362. The cubic root of 8085881 is about 200.7131292114.

The spelling of 8085881 in words is "eight million, eighty-five thousand, eight hundred eighty-one".