1128686 has 8 divisors (see below), whose sum is σ = 1823304. Its totient is φ = 520920.

The previous prime is 1128667. The next prime is 1128691. The reversal of 1128686 is 6868211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 21680 + ... + 21731.

It is an arithmetic number, because the mean of its divisors is an integer number (227913).

2^1128686 is an apocalyptic number.

1128686 is a deficient number, since it is larger than the sum of its proper divisors (694618).

1128686 is a wasteful number, since it uses less digits than its factorization.

1128686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43426.

The product of its digits is 4608, while the sum is 32.

The square root of 1128686 is about 1062.3963478853. The cubic root of 1128686 is about 104.1176553078.

The spelling of 1128686 in words is "one million, one hundred twenty-eight thousand, six hundred eighty-six".