79863 has 8 divisors (see below), whose sum is σ = 121728. Its totient is φ = 45624.

The previous prime is 79861. The next prime is 79867. The reversal of 79863 is 36897.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79863 - 2¹ = 79861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1881 + ... + 1922.

It is an arithmetic number, because the mean of its divisors is an integer number (15216).

2⁷⁹⁸⁶³ is an apocalyptic number.

79863 is a deficient number, since it is larger than the sum of its proper divisors (41865).

79863 is a wasteful number, since it uses less digits than its factorization.

79863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813.

The product of its digits is 9072, while the sum is 33.

The square root of 79863 is about 282.6004246281. The cubic root of 79863 is about 43.0640832841.

It can be divided in two parts, 798 and 63, that added together give a triangular number (861 = T₄₁).

The spelling of 79863 in words is "seventy-nine thousand, eight hundred sixty-three".