1123986 has 32 divisors (see below), whose sum is σ = 2374848. Its totient is φ = 354240.

The previous prime is 1123979. The next prime is 1123999. The reversal of 1123986 is 6893211.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13501 + ... + 13583.

It is an arithmetic number, because the mean of its divisors is an integer number (74214).

2^1123986 is an apocalyptic number.

1123986 is an abundant number, since it is smaller than the sum of its proper divisors (1250862).

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

1123986 is a wasteful number, since it uses less digits than its factorization.

1123986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186.

The product of its digits is 2592, while the sum is 30.

The square root of 1123986 is about 1060.1820598369. The cubic root of 1123986 is about 103.9729342783.

It can be divided in two parts, 11239 and 86, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 1123986 in words is "one million, one hundred twenty-three thousand, nine hundred eighty-six".