1791941 has 2 divisors, whose sum is σ = 1791942. Its totient is φ = 1791940.

The previous prime is 1791901. The next prime is 1791943. The reversal of 1791941 is 1491971.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1562500 + 229441 = 1250^2 + 479^2 .

It is a cyclic number.

It is not a de Polignac number, because 1791941 - 2¹⁰ = 1790917 is a prime.

It is a super-2 number, since 2×1791941² = 6422105094962, which contains 22 as substring.

Together with 1791943, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1791898 and 1791907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1791943) 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, 895970 + 895971.

It is an arithmetic number, because the mean of its divisors is an integer number (895971).

2^1791941 is an apocalyptic number.

It is an amenable number.

1791941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1791941 is an equidigital number, since it uses as much as digits as its factorization.

1791941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 32.

The square root of 1791941 is about 1338.6340052456. The cubic root of 1791941 is about 121.4622258340.

The spelling of 1791941 in words is "one million, seven hundred ninety-one thousand, nine hundred forty-one".