1089369 has 12 divisors (see below), whose sum is σ = 1632176. Its totient is φ = 726084.

The previous prime is 1089359. The next prime is 1089383. The reversal of 1089369 is 9639801.

It is not a de Polignac number, because 1089369 - 2⁸ = 1089113 is a prime.

It is a super-2 number, since 2×1089369² = 2373449636322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1089359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1999 + ... + 2484.

2^1089369 is an apocalyptic number.

It is an amenable number.

1089369 is a deficient number, since it is larger than the sum of its proper divisors (542807).

1089369 is an frugal number, since it uses more digits than its factorization.

1089369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4498 (or 4486 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1089369 is about 1043.7284129504. The cubic root of 1089369 is about 102.8943838361.

The spelling of 1089369 in words is "one million, eighty-nine thousand, three hundred sixty-nine".