8081911 has 4 divisors (see below), whose sum is σ = 8087800. Its totient is φ = 8076024.

The previous prime is 8081849. The next prime is 8081929. The reversal of 8081911 is 1191808.

8081911 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 is a cyclic number.

It is not a de Polignac number, because 8081911 - 2⁹ = 8081399 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 8081911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081971) 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, 325 + ... + 4033.

It is an arithmetic number, because the mean of its divisors is an integer number (2021950).

Almost surely, 2^8081911 is an apocalyptic number.

8081911 is a deficient number, since it is larger than the sum of its proper divisors (5889).

8081911 is a wasteful number, since it uses less digits than its factorization.

8081911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888.

The product of its (nonzero) digits is 576, while the sum is 28.

The square root of 8081911 is about 2842.8702045644. The cubic root of 8081911 is about 200.6802751717.

The spelling of 8081911 in words is "eight million, eighty-one thousand, nine hundred eleven".