1995841 has 2 divisors, whose sum is σ = 1995842. Its totient is φ = 1995840.

The previous prime is 1995827. The next prime is 1995857. The reversal of 1995841 is 1485991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1635841 + 360000 = 1279^2 + 600^2 .

It is a cyclic number.

It is not a de Polignac number, because 1995841 - 2⁷ = 1995713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1995841.

It is not a weakly prime, because it can be changed into another prime (1995541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997920 + 997921.

It is an arithmetic number, because the mean of its divisors is an integer number (997921).

2^1995841 is an apocalyptic number.

It is an amenable number.

1995841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1995841 is an equidigital number, since it uses as much as digits as its factorization.

1995841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 37.

The square root of 1995841 is about 1412.7423685867. The cubic root of 1995841 is about 125.9047108553.

The spelling of 1995841 in words is "one million, nine hundred ninety-five thousand, eight hundred forty-one".