1589641 has 2 divisors, whose sum is σ = 1589642. Its totient is φ = 1589640.

The previous prime is 1589633. The next prime is 1589647. The reversal of 1589641 is 1469851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1254400 + 335241 = 1120^2 + 579^2 .

It is an emirp because it is prime and its reverse (1469851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1589641 - 2³ = 1589633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1589597 and 1589606.

It is not a weakly prime, because it can be changed into another prime (1589647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 794820 + 794821.

It is an arithmetic number, because the mean of its divisors is an integer number (794821).

2^1589641 is an apocalyptic number.

It is an amenable number.

1589641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1589641 is an equidigital number, since it uses as much as digits as its factorization.

1589641 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1589641 is about 1260.8096604960. The cubic root of 1589641 is about 116.7077469845.

The spelling of 1589641 in words is "one million, five hundred eighty-nine thousand, six hundred forty-one".