791849 has 2 divisors, whose sum is σ = 791850. Its totient is φ = 791848.

The previous prime is 791827. The next prime is 791851. The reversal of 791849 is 948197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 469225 + 322624 = 685^2 + 568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-791849 is a prime.

Together with 791851, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (791899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395924 + 395925.

It is an arithmetic number, because the mean of its divisors is an integer number (395925).

2⁷⁹¹⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

791849 is a deficient number, since it is larger than the sum of its proper divisors (1).

791849 is an equidigital number, since it uses as much as digits as its factorization.

791849 is an evil number, because the sum of its binary digits is even.

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

The square root of 791849 is about 889.8589775914. The cubic root of 791849 is about 92.5154198788.

The spelling of 791849 in words is "seven hundred ninety-one thousand, eight hundred forty-nine".