78873 has 8 divisors (see below), whose sum is σ = 107136. Its totient is φ = 51600.

The previous prime is 78857. The next prime is 78877. The reversal of 78873 is 37887.

78873 is nontrivially palindromic in base 13.

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

It is not a de Polignac number, because 78873 - 2⁴ = 78857 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33 + ... + 398.

It is an arithmetic number, because the mean of its divisors is an integer number (13392).

2⁷⁸⁸⁷³ is an apocalyptic number.

It is an amenable number.

78873 is a deficient number, since it is larger than the sum of its proper divisors (28263).

78873 is a wasteful number, since it uses less digits than its factorization.

78873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495.

The product of its digits is 9408, while the sum is 33.

The square root of 78873 is about 280.8433727187. The cubic root of 78873 is about 42.8853988269.

It can be divided in two parts, 788 and 73, that added together give a triangular number (861 = T₄₁).

The spelling of 78873 in words is "seventy-eight thousand, eight hundred seventy-three".