1825897 has 2 divisors, whose sum is σ = 1825898. Its totient is φ = 1825896.

The previous prime is 1825891. The next prime is 1825933. The reversal of 1825897 is 7985281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1648656 + 177241 = 1284^2 + 421^2 .

It is a cyclic number.

It is not a de Polignac number, because 1825897 - 2¹¹ = 1823849 is a prime.

It is a Chen prime.

1825897 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1825891) 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, 912948 + 912949.

It is an arithmetic number, because the mean of its divisors is an integer number (912949).

2^1825897 is an apocalyptic number.

It is an amenable number.

1825897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1825897 is an equidigital number, since it uses as much as digits as its factorization.

1825897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 40.

The square root of 1825897 is about 1351.2575624210. The cubic root of 1825897 is about 122.2246376321.

The spelling of 1825897 in words is "one million, eight hundred twenty-five thousand, eight hundred ninety-seven".