1117986 has 16 divisors (see below), whose sum is σ = 2246400. Its totient is φ = 370928.

The previous prime is 1117973. The next prime is 1117993. The reversal of 1117986 is 6897111.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2095 + ... + 2573.

It is an arithmetic number, because the mean of its divisors is an integer number (140400).

2^1117986 is an apocalyptic number.

1117986 is an abundant number, since it is smaller than the sum of its proper divisors (1128414).

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

1117986 is a wasteful number, since it uses less digits than its factorization.

1117986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873.

The product of its digits is 3024, while the sum is 33.

The square root of 1117986 is about 1057.3485707183. The cubic root of 1117986 is about 103.7875965741.

It can be divided in two parts, 111 and 7986, that multiplied together give a triangular number (886446 = T₁₃₃₁).

The spelling of 1117986 in words is "one million, one hundred seventeen thousand, nine hundred eighty-six".