1803089 has 2 divisors, whose sum is σ = 1803090. Its totient is φ = 1803088.

The previous prime is 1803079. The next prime is 1803097. The reversal of 1803089 is 9803081.

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., 984064 + 819025 = 992^2 + 905^2 .

It is an emirp because it is prime and its reverse (9803081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1803089 - 2²⁰ = 754513 is a prime.

It is a super-2 number, since 2×1803089² = 6502259883842, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1803029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 901544 + 901545.

It is an arithmetic number, because the mean of its divisors is an integer number (901545).

2^1803089 is an apocalyptic number.

It is an amenable number.

1803089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1803089 is an equidigital number, since it uses as much as digits as its factorization.

1803089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1803089 is about 1342.7914953559. The cubic root of 1803089 is about 121.7135850404.

The spelling of 1803089 in words is "one million, eight hundred three thousand, eighty-nine".