8120843 has 2 divisors, whose sum is σ = 8120844. Its totient is φ = 8120842.

The previous prime is 8120839. The next prime is 8120867. The reversal of 8120843 is 3480218.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8120843 - 2² = 8120839 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8120873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4060421 + 4060422.

It is an arithmetic number, because the mean of its divisors is an integer number (4060422).

Almost surely, 2^8120843 is an apocalyptic number.

8120843 is a deficient number, since it is larger than the sum of its proper divisors (1).

8120843 is an equidigital number, since it uses as much as digits as its factorization.

8120843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 8120843 is about 2849.7092834182. The cubic root of 8120843 is about 201.0019966304.

The spelling of 8120843 in words is "eight million, one hundred twenty thousand, eight hundred forty-three".