1788041 has 2 divisors, whose sum is σ = 1788042. Its totient is φ = 1788040.

The previous prime is 1788037. The next prime is 1788067. The reversal of 1788041 is 1408871.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1392400 + 395641 = 1180^2 + 629^2 .

It is an emirp because it is prime and its reverse (1408871) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1788041 - 2² = 1788037 is a prime.

It is a nialpdrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 1787995 and 1788013.

It is not a weakly prime, because it can be changed into another prime (1788011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 894020 + 894021.

It is an arithmetic number, because the mean of its divisors is an integer number (894021).

2^1788041 is an apocalyptic number.

It is an amenable number.

1788041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1788041 is an equidigital number, since it uses as much as digits as its factorization.

1788041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 1788041 is about 1337.1765029344. The cubic root of 1788041 is about 121.3740445910.

The spelling of 1788041 in words is "one million, seven hundred eighty-eight thousand, forty-one".