841979 has 2 divisors, whose sum is σ = 841980. Its totient is φ = 841978.

The previous prime is 841933. The next prime is 841987. The reversal of 841979 is 979148.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-841979 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (841079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420989 + 420990.

It is an arithmetic number, because the mean of its divisors is an integer number (420990).

2⁸⁴¹⁹⁷⁹ is an apocalyptic number.

841979 is a deficient number, since it is larger than the sum of its proper divisors (1).

841979 is an equidigital number, since it uses as much as digits as its factorization.

841979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 38.

The square root of 841979 is about 917.5941368601. The cubic root of 841979 is about 94.4279192412.

The spelling of 841979 in words is "eight hundred forty-one thousand, nine hundred seventy-nine".