113686 has 4 divisors (see below), whose sum is σ = 170532. Its totient is φ = 56842.

The previous prime is 113683. The next prime is 113717. The reversal of 113686 is 686311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 686311 = 61 ⋅11251.

It is a self number, because there is not a number n which added to its sum of digits gives 113686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28420 + ... + 28423.

It is an arithmetic number, because the mean of its divisors is an integer number (42633).

2¹¹³⁶⁸⁶ is an apocalyptic number.

113686 is a deficient number, since it is larger than the sum of its proper divisors (56846).

113686 is an equidigital number, since it uses as much as digits as its factorization.

113686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56845.

The product of its digits is 864, while the sum is 25.

The square root of 113686 is about 337.1735458188. The cubic root of 113686 is about 48.4435166303.

Adding to 113686 its reverse (686311), we get a palindrome (799997).

The spelling of 113686 in words is "one hundred thirteen thousand, six hundred eighty-six".