84479 has 4 divisors (see below), whose sum is σ = 88176. Its totient is φ = 80784.

The previous prime is 84467. The next prime is 84481. The reversal of 84479 is 97448.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84479 - 2⁴ = 84463 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84449) 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, 1814 + ... + 1859.

It is an arithmetic number, because the mean of its divisors is an integer number (22044).

2⁸⁴⁴⁷⁹ is an apocalyptic number.

84479 is a deficient number, since it is larger than the sum of its proper divisors (3697).

84479 is a wasteful number, since it uses less digits than its factorization.

84479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3696.

The product of its digits is 8064, while the sum is 32.

The square root of 84479 is about 290.6527137324. The cubic root of 84479 is about 43.8782792873.

The spelling of 84479 in words is "eighty-four thousand, four hundred seventy-nine".