911089 has 2 divisors, whose sum is σ = 911090. Its totient is φ = 911088.

The previous prime is 911087. The next prime is 911101. The reversal of 911089 is 980119.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 874225 + 36864 = 935^2 + 192^2 .

It is a cyclic number.

It is not a de Polignac number, because 911089 - 2¹ = 911087 is a prime.

Together with 911087, it forms a pair of twin primes.

911089 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (911087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455544 + 455545.

It is an arithmetic number, because the mean of its divisors is an integer number (455545).

2⁹¹¹⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

911089 is a deficient number, since it is larger than the sum of its proper divisors (1).

911089 is an equidigital number, since it uses as much as digits as its factorization.

911089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 911089 is about 954.5098218457. The cubic root of 911089 is about 96.9438510199.

It can be divided in two parts, 91 and 1089, that multiplied together give a palindrome (99099).

The spelling of 911089 in words is "nine hundred eleven thousand, eighty-nine".