83381 has 4 divisors (see below), whose sum is σ = 84000. Its totient is φ = 82764.

The previous prime is 83357. The next prime is 83383. The reversal of 83381 is 18338.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83381 is a prime.

It is a super-2 number, since 2×83381² = 13904782322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11 + ... + 408.

It is an arithmetic number, because the mean of its divisors is an integer number (21000).

2⁸³³⁸¹ is an apocalyptic number.

It is an amenable number.

83381 is a deficient number, since it is larger than the sum of its proper divisors (619).

83381 is a wasteful number, since it uses less digits than its factorization.

83381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618.

The product of its digits is 576, while the sum is 23.

The square root of 83381 is about 288.7576838804. The cubic root of 83381 is about 43.6873497832.

It can be divided in two parts, 83 and 381, that added together give a palindrome (464).

The spelling of 83381 in words is "eighty-three thousand, three hundred eighty-one".