1589669 has 2 divisors, whose sum is σ = 1589670. Its totient is φ = 1589668.

The previous prime is 1589663. The next prime is 1589671. The reversal of 1589669 is 9669851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 925444 + 664225 = 962^2 + 815^2 .

It is an emirp because it is prime and its reverse (9669851) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1589669 is a prime.

It is a super-2 number, since 2×1589669² = 5054095059122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1589671, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1589663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 794834 + 794835.

It is an arithmetic number, because the mean of its divisors is an integer number (794835).

2^1589669 is an apocalyptic number.

It is an amenable number.

1589669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1589669 is an equidigital number, since it uses as much as digits as its factorization.

1589669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 44.

The square root of 1589669 is about 1260.8207644229. The cubic root of 1589669 is about 116.7084322121.

The spelling of 1589669 in words is "one million, five hundred eighty-nine thousand, six hundred sixty-nine".