8158841 has 2 divisors, whose sum is σ = 8158842. Its totient is φ = 8158840.

The previous prime is 8158837. The next prime is 8158867. The reversal of 8158841 is 1488518.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5740816 + 2418025 = 2396^2 + 1555^2 .

It is a cyclic number.

It is not a de Polignac number, because 8158841 - 2² = 8158837 is a prime.

It is not a weakly prime, because it can be changed into another prime (8158441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4079420 + 4079421.

It is an arithmetic number, because the mean of its divisors is an integer number (4079421).

Almost surely, 2^8158841 is an apocalyptic number.

It is an amenable number.

8158841 is a deficient number, since it is larger than the sum of its proper divisors (1).

8158841 is an equidigital number, since it uses as much as digits as its factorization.

8158841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10240, while the sum is 35.

The square root of 8158841 is about 2856.3684986360. The cubic root of 8158841 is about 201.3150097963.

The spelling of 8158841 in words is "eight million, one hundred fifty-eight thousand, eight hundred forty-one".