1594861 has 2 divisors, whose sum is σ = 1594862. Its totient is φ = 1594860.

The previous prime is 1594849. The next prime is 1594867. The reversal of 1594861 is 1684951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1485961 + 108900 = 1219^2 + 330^2 .

It is an emirp because it is prime and its reverse (1684951) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1594861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1594867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 797430 + 797431.

It is an arithmetic number, because the mean of its divisors is an integer number (797431).

2^1594861 is an apocalyptic number.

It is an amenable number.

1594861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1594861 is an equidigital number, since it uses as much as digits as its factorization.

1594861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 34.

The square root of 1594861 is about 1262.8780622055. The cubic root of 1594861 is about 116.8353541643.

The spelling of 1594861 in words is "one million, five hundred ninety-four thousand, eight hundred sixty-one".