841931 has 2 divisors, whose sum is σ = 841932. Its totient is φ = 841930.

The previous prime is 841927. The next prime is 841933. The reversal of 841931 is 139148.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 841931 - 2² = 841927 is a prime.

It is a super-2 number, since 2×841931² = 1417695617522, which contains 22 as substring.

Together with 841933, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 841931.

It is not a weakly prime, because it can be changed into another prime (841933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420965 + 420966.

It is an arithmetic number, because the mean of its divisors is an integer number (420966).

2⁸⁴¹⁹³¹ is an apocalyptic number.

841931 is a deficient number, since it is larger than the sum of its proper divisors (1).

841931 is an equidigital number, since it uses as much as digits as its factorization.

841931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 26.

The square root of 841931 is about 917.5679811327. The cubic root of 841931 is about 94.4261248076.

The spelling of 841931 in words is "eight hundred forty-one thousand, nine hundred thirty-one".