1092389 has 2 divisors, whose sum is σ = 1092390. Its totient is φ = 1092388.

The previous prime is 1092379. The next prime is 1092391. The reversal of 1092389 is 9832901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 588289 + 504100 = 767^2 + 710^2 .

It is a cyclic number.

It is not a de Polignac number, because 1092389 - 2⁴ = 1092373 is a prime.

It is a Sophie Germain prime.

Together with 1092391, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1092349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 546194 + 546195.

It is an arithmetic number, because the mean of its divisors is an integer number (546195).

2^1092389 is an apocalyptic number.

It is an amenable number.

1092389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1092389 is an equidigital number, since it uses as much as digits as its factorization.

1092389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1092389 is about 1045.1741481686. The cubic root of 1092389 is about 102.9893789909.

The spelling of 1092389 in words is "one million, ninety-two thousand, three hundred eighty-nine".