1806797 has 2 divisors, whose sum is σ = 1806798. Its totient is φ = 1806796.

The previous prime is 1806781. The next prime is 1806803. The reversal of 1806797 is 7976081.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1196836 + 609961 = 1094^2 + 781^2 .

It is an emirp because it is prime and its reverse (7976081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1806797 - 2⁴ = 1806781 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1806797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1806697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 903398 + 903399.

It is an arithmetic number, because the mean of its divisors is an integer number (903399).

2^1806797 is an apocalyptic number.

It is an amenable number.

1806797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1806797 is an equidigital number, since it uses as much as digits as its factorization.

1806797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 1806797 is about 1344.1714920351. The cubic root of 1806797 is about 121.7969613934.

The spelling of 1806797 in words is "one million, eight hundred six thousand, seven hundred ninety-seven".