38806 has 4 divisors (see below), whose sum is σ = 58212. Its totient is φ = 19402.

The previous prime is 38803. The next prime is 38821. The reversal of 38806 is 60883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60883 = 107 ⋅569.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9700 + ... + 9703.

It is an arithmetic number, because the mean of its divisors is an integer number (14553).

2³⁸⁸⁰⁶ is an apocalyptic number.

38806 is a deficient number, since it is larger than the sum of its proper divisors (19406).

38806 is a wasteful number, since it uses less digits than its factorization.

38806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19405.

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

The square root of 38806 is about 196.9923856396. The cubic root of 38806 is about 33.8557905914.

Subtracting from 38806 its sum of digits (25), we obtain a triangular number (38781 = T₂₇₈).

It can be divided in two parts, 38 and 806, that multiplied together give a triangular number (30628 = T₂₄₇).

The spelling of 38806 in words is "thirty-eight thousand, eight hundred six".