1088389 has 2 divisors, whose sum is σ = 1088390. Its totient is φ = 1088388.

The previous prime is 1088387. The next prime is 1088393. The reversal of 1088389 is 9838801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 893025 + 195364 = 945^2 + 442^2 .

It is a cyclic number.

It is not a de Polignac number, because 1088389 - 2¹ = 1088387 is a prime.

Together with 1088387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1088387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544194 + 544195.

It is an arithmetic number, because the mean of its divisors is an integer number (544195).

2^1088389 is an apocalyptic number.

It is an amenable number.

1088389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1088389 is an equidigital number, since it uses as much as digits as its factorization.

1088389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 1088389 is about 1043.2588365310. The cubic root of 1088389 is about 102.8635198684.

The spelling of 1088389 in words is "one million, eighty-eight thousand, three hundred eighty-nine".