84430 has 8 divisors (see below), whose sum is σ = 151992. Its totient is φ = 33768.

The previous prime is 84421. The next prime is 84431. The reversal of 84430 is 3448.

84430 is nontrivially palindromic in base 9 and base 11.

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

It is a plaindrome in base 14 and base 16.

It is a nialpdrome in base 10.

It is a zygodrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 84398 and 84407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84431) by changing a digit.

84430 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4212 + ... + 4231.

It is an arithmetic number, because the mean of its divisors is an integer number (18999).

2⁸⁴⁴³⁰ is an apocalyptic number.

84430 is a deficient number, since it is larger than the sum of its proper divisors (67562).

84430 is a wasteful number, since it uses less digits than its factorization.

84430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8450.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 84430 is about 290.5684084686. The cubic root of 84430 is about 43.8697941351.

Adding to 84430 its reverse (3448), we get a palindrome (87878).

The spelling of 84430 in words is "eighty-four thousand, four hundred thirty".