79806 has 16 divisors (see below), whose sum is σ = 163584. Its totient is φ = 25944.

The previous prime is 79801. The next prime is 79811. The reversal of 79806 is 60897.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (79801) and next prime (79811).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79801) by changing a digit.

79806 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141 + ... + 423.

It is an arithmetic number, because the mean of its divisors is an integer number (10224).

2⁷⁹⁸⁰⁶ is an apocalyptic number.

It is a pronic number, being equal to 282×283.

79806 is an abundant number, since it is smaller than the sum of its proper divisors (83778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81792).

79806 is a wasteful number, since it uses less digits than its factorization.

79806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 79806 is about 282.4995575218. The cubic root of 79806 is about 43.0538355809.

The spelling of 79806 in words is "seventy-nine thousand, eight hundred six".