1848997 has 2 divisors, whose sum is σ = 1848998. Its totient is φ = 1848996.

The previous prime is 1848983. The next prime is 1849013. The reversal of 1848997 is 7998481.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1846881 + 2116 = 1359^2 + 46^2 .

It is an emirp because it is prime and its reverse (7998481) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1848997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1848907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 924498 + 924499.

It is an arithmetic number, because the mean of its divisors is an integer number (924499).

2^1848997 is an apocalyptic number.

It is an amenable number.

1848997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1848997 is an equidigital number, since it uses as much as digits as its factorization.

1848997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 46.

The square root of 1848997 is about 1359.7782907518. The cubic root of 1848997 is about 122.7379133144.

The spelling of 1848997 in words is "one million, eight hundred forty-eight thousand, nine hundred ninety-seven".