113893 has 4 divisors (see below), whose sum is σ = 122668. Its totient is φ = 105120.

The previous prime is 113891. The next prime is 113899. The reversal of 113893 is 398311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12769 + 101124 = 113^2 + 318^2 .

It is a cyclic number.

It is not a de Polignac number, because 113893 - 2¹ = 113891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113891) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4368 + ... + 4393.

It is an arithmetic number, because the mean of its divisors is an integer number (30667).

2¹¹³⁸⁹³ is an apocalyptic number.

113893 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

113893 is a deficient number, since it is larger than the sum of its proper divisors (8775).

113893 is an equidigital number, since it uses as much as digits as its factorization.

113893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8774.

The product of its digits is 648, while the sum is 25.

The square root of 113893 is about 337.4803697995. The cubic root of 113893 is about 48.4729008637.

The spelling of 113893 in words is "one hundred thirteen thousand, eight hundred ninety-three".