83806 has 4 divisors (see below), whose sum is σ = 125712. Its totient is φ = 41902.

The previous prime is 83791. The next prime is 83813. The reversal of 83806 is 60838.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20950 + ... + 20953.

It is an arithmetic number, because the mean of its divisors is an integer number (31428).

2⁸³⁸⁰⁶ is an apocalyptic number.

83806 is a deficient number, since it is larger than the sum of its proper divisors (41906).

83806 is a wasteful number, since it uses less digits than its factorization.

83806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41905.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 83806 is about 289.4926596651. The cubic root of 83806 is about 43.7614500643.

The spelling of 83806 in words is "eighty-three thousand, eight hundred six".