1768241 has 2 divisors, whose sum is σ = 1768242. Its totient is φ = 1768240.

The previous prime is 1768231. The next prime is 1768243. The reversal of 1768241 is 1428671.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1488400 + 279841 = 1220^2 + 529^2 .

It is an emirp because it is prime and its reverse (1428671) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1768241 is a prime.

Together with 1768243, 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 (1768243) 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, 884120 + 884121.

It is an arithmetic number, because the mean of its divisors is an integer number (884121).

2^1768241 is an apocalyptic number.

It is an amenable number.

1768241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1768241 is an equidigital number, since it uses as much as digits as its factorization.

1768241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 29.

The square root of 1768241 is about 1329.7522325606. The cubic root of 1768241 is about 120.9243659105.

The spelling of 1768241 in words is "one million, seven hundred sixty-eight thousand, two hundred forty-one".