8917841 has 2 divisors, whose sum is σ = 8917842. Its totient is φ = 8917840.

The previous prime is 8917837. The next prime is 8917849. The reversal of 8917841 is 1487198.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4857616 + 4060225 = 2204^2 + 2015^2 .

It is a cyclic number.

It is not a de Polignac number, because 8917841 - 2² = 8917837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8917795 and 8917804.

It is not a weakly prime, because it can be changed into another prime (8917849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4458920 + 4458921.

It is an arithmetic number, because the mean of its divisors is an integer number (4458921).

Almost surely, 2^8917841 is an apocalyptic number.

It is an amenable number.

8917841 is a deficient number, since it is larger than the sum of its proper divisors (1).

8917841 is an equidigital number, since it uses as much as digits as its factorization.

8917841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 38.

The square root of 8917841 is about 2986.2754394061. The cubic root of 8917841 is about 207.3734923456.

The spelling of 8917841 in words is "eight million, nine hundred seventeen thousand, eight hundred forty-one".