84279 has 8 divisors (see below), whose sum is σ = 121072. Its totient is φ = 51840.

The previous prime is 84263. The next prime is 84299. The reversal of 84279 is 97248.

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

It is not a de Polignac number, because 84279 - 2⁴ = 84263 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8 and base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84229) 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, 1042 + ... + 1119.

It is an arithmetic number, because the mean of its divisors is an integer number (15134).

2⁸⁴²⁷⁹ is an apocalyptic number.

84279 is a deficient number, since it is larger than the sum of its proper divisors (36793).

84279 is a wasteful number, since it uses less digits than its factorization.

84279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177.

The product of its digits is 4032, while the sum is 30.

The square root of 84279 is about 290.3084566457. The cubic root of 84279 is about 43.8436253484.

It can be divided in two parts, 84 and 279, that multiplied together give a triangular number (23436 = T₂₁₆).

The spelling of 84279 in words is "eighty-four thousand, two hundred seventy-nine".