79812 has 24 divisors (see below), whose sum is σ = 207200. Its totient is φ = 26568.

The previous prime is 79811. The next prime is 79813. The reversal of 79812 is 21897.

It is an interprime number because it is at equal distance from previous prime (79811) and next prime (79813).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 15.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (79811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262 + ... + 477.

2⁷⁹⁸¹² is an apocalyptic number.

It is an amenable number.

79812 is an abundant number, since it is smaller than the sum of its proper divisors (127388).

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 (103600).

79812 is a wasteful number, since it uses less digits than its factorization.

79812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 744 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 79812 is about 282.5101768078. The cubic root of 79812 is about 43.0549145162.

The spelling of 79812 in words is "seventy-nine thousand, eight hundred twelve".