8681811 has 4 divisors (see below), whose sum is σ = 11575752. Its totient is φ = 5787872.

The previous prime is 8681789. The next prime is 8681821. The reversal of 8681811 is 1181868.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8681811 - 2⁵ = 8681779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8681821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1446966 + ... + 1446971.

It is an arithmetic number, because the mean of its divisors is an integer number (2893938).

Almost surely, 2^8681811 is an apocalyptic number.

8681811 is a deficient number, since it is larger than the sum of its proper divisors (2893941).

8681811 is a wasteful number, since it uses less digits than its factorization.

8681811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2893940.

The product of its digits is 3072, while the sum is 33.

The square root of 8681811 is about 2946.4913032283. The cubic root of 8681811 is about 205.5275801985.

The spelling of 8681811 in words is "eight million, six hundred eighty-one thousand, eight hundred eleven".