8861841 has 12 divisors (see below), whose sum is σ = 12928500. Its totient is φ = 5848800.

The previous prime is 8861837. The next prime is 8861851. The reversal of 8861841 is 1481688.

It can be written as a sum of positive squares in 2 ways, for example, as 5267025 + 3594816 = 2295^2 + 1896^2 .

It is not a de Polignac number, because 8861841 - 2² = 8861837 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8861796 and 8861805.

It is not an unprimeable number, because it can be changed into a prime (8861851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3966 + ... + 5783.

It is an arithmetic number, because the mean of its divisors is an integer number (1077375).

Almost surely, 2^8861841 is an apocalyptic number.

It is an amenable number.

8861841 is a deficient number, since it is larger than the sum of its proper divisors (4066659).

8861841 is a wasteful number, since it uses less digits than its factorization.

8861841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9856 (or 9853 counting only the distinct ones).

The product of its digits is 12288, while the sum is 36.

The square root of 8861841 is about 2976.8844451876. The cubic root of 8861841 is about 206.9385100564.

The spelling of 8861841 in words is "eight million, eight hundred sixty-one thousand, eight hundred forty-one".