1089837 has 12 divisors (see below), whose sum is σ = 1799200. Its totient is φ = 622728.

The previous prime is 1089799. The next prime is 1089841. The reversal of 1089837 is 7389801.

It is not a de Polignac number, because 1089837 - 2⁷ = 1089709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8587 + ... + 8712.

2^1089837 is an apocalyptic number.

It is an amenable number.

1089837 is a deficient number, since it is larger than the sum of its proper divisors (709363).

1089837 is a wasteful number, since it uses less digits than its factorization.

1089837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17312 (or 17309 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 1089837 is about 1043.9525851302. The cubic root of 1089837 is about 102.9091164252.

Subtracting from 1089837 its sum of digits (36), we obtain a palindrome (1089801).

The spelling of 1089837 in words is "one million, eighty-nine thousand, eight hundred thirty-seven".