1113684 has 72 divisors (see below), whose sum is σ = 3128160. Its totient is φ = 306240.

The previous prime is 1113667. The next prime is 1113701. The reversal of 1113684 is 4863111.

1113684 = 7² + 8² + ... + 149².

It is an interprime number because it is at equal distance from previous prime (1113667) and next prime (1113701).

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 23 ways as a sum of consecutive naturals, for example, 18847 + ... + 18905.

2^1113684 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 1113684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1564080).

1113684 is an abundant number, since it is smaller than the sum of its proper divisors (2014476).

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

1113684 is a wasteful number, since it uses less digits than its factorization.

1113684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 88 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

The square root of 1113684 is about 1055.3122760586. The cubic root of 1113684 is about 103.6543008769.

Adding to 1113684 its reverse (4863111), we get a palindrome (5976795).

It can be divided in two parts, 11 and 13684, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 1113684 in words is "one million, one hundred thirteen thousand, six hundred eighty-four".