8113861 has 6 divisors (see below), whose sum is σ = 9438630. Its totient is φ = 6954696.

The previous prime is 8113843. The next prime is 8113867. The reversal of 8113861 is 1683118.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6890625 + 1223236 = 2625^2 + 1106^2 .

It is not a de Polignac number, because 8113861 - 2⁵ = 8113829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8113867) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82746 + ... + 82843.

It is an arithmetic number, because the mean of its divisors is an integer number (1573105).

Almost surely, 2^8113861 is an apocalyptic number.

It is an amenable number.

8113861 is a deficient number, since it is larger than the sum of its proper divisors (1324769).

8113861 is a wasteful number, since it uses less digits than its factorization.

8113861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165603 (or 165596 counting only the distinct ones).

The product of its digits is 1152, while the sum is 28.

The square root of 8113861 is about 2848.4839827529. The cubic root of 8113861 is about 200.9443754233.

Adding to 8113861 its reverse (1683118), we get a palindrome (9796979).

The spelling of 8113861 in words is "eight million, one hundred thirteen thousand, eight hundred sixty-one".