84434 has 16 divisors (see below), whose sum is σ = 149568. Its totient is φ = 34992.

The previous prime is 84431. The next prime is 84437. The reversal of 84434 is 43448.

It is an interprime number because it is at equal distance from previous prime (84431) and next prime (84437).

It is a Curzon number.

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 84434.

It is not an unprimeable number, because it can be changed into a prime (84431) 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, 437 + ... + 599.

It is an arithmetic number, because the mean of its divisors is an integer number (9348).

2⁸⁴⁴³⁴ is an apocalyptic number.

84434 is a deficient number, since it is larger than the sum of its proper divisors (65134).

84434 is a wasteful number, since it uses less digits than its factorization.

84434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209.

The product of its digits is 1536, while the sum is 23.

The square root of 84434 is about 290.5752914478. The cubic root of 84434 is about 43.8704869236.

It can be divided in two parts, 844 and 34, that added together give a palindrome (878).

The spelling of 84434 in words is "eighty-four thousand, four hundred thirty-four".