84380 has 12 divisors (see below), whose sum is σ = 177240. Its totient is φ = 33744.

The previous prime is 84377. The next prime is 84389. The reversal of 84380 is 8348.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84389) 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, 2090 + ... + 2129.

It is an arithmetic number, because the mean of its divisors is an integer number (14770).

2⁸⁴³⁸⁰ is an apocalyptic number.

It is an amenable number.

84380 is an abundant number, since it is smaller than the sum of its proper divisors (92860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88620).

84380 is a wasteful number, since it uses less digits than its factorization.

84380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4228 (or 4226 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 84380 is about 290.4823574677. The cubic root of 84380 is about 43.8611324317.

It can be divided in two parts, 84 and 380, that added together give a palindrome (464).

The spelling of 84380 in words is "eighty-four thousand, three hundred eighty".