1186836 has 48 divisors (see below), whose sum is σ = 3225600. Its totient is φ = 332640.

The previous prime is 1186813. The next prime is 1186837. The reversal of 1186836 is 6386811.

It is a junction number, because it is equal to n+sod(n) for n = 1186797 and 1186806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1186837) 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 in 15 ways as a sum of consecutive naturals, for example, 5865 + ... + 6063.

It is an arithmetic number, because the mean of its divisors is an integer number (67200).

2^1186836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1186836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1612800).

1186836 is an abundant number, since it is smaller than the sum of its proper divisors (2038764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1186836 is a wasteful number, since it uses less digits than its factorization.

1186836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 282 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 1186836 is about 1089.4200291898. The cubic root of 1186836 is about 105.8758484748.

The spelling of 1186836 in words is "one million, one hundred eighty-six thousand, eight hundred thirty-six".