1089563 has 2 divisors, whose sum is σ = 1089564. Its totient is φ = 1089562.

The previous prime is 1089551. The next prime is 1089611. The reversal of 1089563 is 3659801.

It is a weak prime.

It is an emirp because it is prime and its reverse (3659801) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1089563 is a prime.

It is not a weakly prime, because it can be changed into another prime (1089503) 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, 544781 + 544782.

It is an arithmetic number, because the mean of its divisors is an integer number (544782).

2^1089563 is an apocalyptic number.

1089563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089563 is an equidigital number, since it uses as much as digits as its factorization.

1089563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1089563 is about 1043.8213448670. The cubic root of 1089563 is about 102.9004914470.

The spelling of 1089563 in words is "one million, eighty-nine thousand, five hundred sixty-three".