78927 has 4 divisors (see below), whose sum is σ = 105240. Its totient is φ = 52616.

The previous prime is 78919. The next prime is 78929. The reversal of 78927 is 72987.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72987 = 3 ⋅24329.

It is a cyclic number.

It is not a de Polignac number, because 78927 - 2³ = 78919 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 16.

It is a nialpdrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 78927.

It is not an unprimeable number, because it can be changed into a prime (78929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13152 + ... + 13157.

It is an arithmetic number, because the mean of its divisors is an integer number (26310).

2⁷⁸⁹²⁷ is an apocalyptic number.

78927 is a deficient number, since it is larger than the sum of its proper divisors (26313).

78927 is a wasteful number, since it uses less digits than its factorization.

78927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26312.

The product of its digits is 7056, while the sum is 33.

The square root of 78927 is about 280.9394952654. The cubic root of 78927 is about 42.8951836846.

The spelling of 78927 in words is "seventy-eight thousand, nine hundred twenty-seven".