7991341 has 2 divisors, whose sum is σ = 7991342. Its totient is φ = 7991340.

The previous prime is 7991339. The next prime is 7991369. The reversal of 7991341 is 1431997.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7001316 + 990025 = 2646^2 + 995^2 .

It is a cyclic number.

It is not a de Polignac number, because 7991341 - 2¹ = 7991339 is a prime.

Together with 7991339, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 7991297 and 7991306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7991311) 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, 3995670 + 3995671.

It is an arithmetic number, because the mean of its divisors is an integer number (3995671).

Almost surely, 2^7991341 is an apocalyptic number.

It is an amenable number.

7991341 is a deficient number, since it is larger than the sum of its proper divisors (1).

7991341 is an equidigital number, since it uses as much as digits as its factorization.

7991341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 34.

The square root of 7991341 is about 2826.8960009169. The cubic root of 7991341 is about 199.9278156169.

The spelling of 7991341 in words is "seven million, nine hundred ninety-one thousand, three hundred forty-one".