84879 has 6 divisors (see below), whose sum is σ = 122616. Its totient is φ = 56580.

The previous prime is 84871. The next prime is 84913. The reversal of 84879 is 97848.

It is not a de Polignac number, because 84879 - 2³ = 84871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4707 + ... + 4724.

It is an arithmetic number, because the mean of its divisors is an integer number (20436).

2⁸⁴⁸⁷⁹ is an apocalyptic number.

84879 is a deficient number, since it is larger than the sum of its proper divisors (37737).

84879 is a wasteful number, since it uses less digits than its factorization.

84879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9437 (or 9434 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 84879 is about 291.3400075513. The cubic root of 84879 is about 43.9474234260.

The spelling of 84879 in words is "eighty-four thousand, eight hundred seventy-nine".