1797227 has 2 divisors, whose sum is σ = 1797228. Its totient is φ = 1797226.

The previous prime is 1797209. The next prime is 1797239. The reversal of 1797227 is 7227971.

It is a strong prime.

It is an emirp because it is prime and its reverse (7227971) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1797227 is a prime.

It is not a weakly prime, because it can be changed into another prime (1797277) 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, 898613 + 898614.

It is an arithmetic number, because the mean of its divisors is an integer number (898614).

2^1797227 is an apocalyptic number.

1797227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1797227 is an equidigital number, since it uses as much as digits as its factorization.

1797227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12348, while the sum is 35.

The square root of 1797227 is about 1340.6069520930. The cubic root of 1797227 is about 121.5815413391.

The spelling of 1797227 in words is "one million, seven hundred ninety-seven thousand, two hundred twenty-seven".