1343791 has 2 divisors, whose sum is σ = 1343792. Its totient is φ = 1343790.

The previous prime is 1343789. The next prime is 1343801. The reversal of 1343791 is 1973431.

It is a weak prime.

It is an emirp because it is prime and its reverse (1973431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1343791 - 2¹ = 1343789 is a prime.

Together with 1343789, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1343491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671895 + 671896.

It is an arithmetic number, because the mean of its divisors is an integer number (671896).

2^1343791 is an apocalyptic number.

1343791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343791 is an equidigital number, since it uses as much as digits as its factorization.

1343791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 28.

The square root of 1343791 is about 1159.2199963769. The cubic root of 1343791 is about 110.3512463703.

The spelling of 1343791 in words is "one million, three hundred forty-three thousand, seven hundred ninety-one".