84331 has 6 divisors (see below), whose sum is σ = 91500. Its totient is φ = 77688.

The previous prime is 84319. The next prime is 84347. The reversal of 84331 is 13348.

It is not a de Polignac number, because 84331 - 2⁵ = 84299 is a prime.

It is a super-2 number, since 2×84331² = 14223435122, which contains 22 as substring.

It is a Duffinian number.

84331 is a lucky number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 84299 and 84308.

It is not an unprimeable number, because it can be changed into a prime (84391) 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, 81 + ... + 418.

It is an arithmetic number, because the mean of its divisors is an integer number (15250).

2⁸⁴³³¹ is an apocalyptic number.

84331 is a deficient number, since it is larger than the sum of its proper divisors (7169).

84331 is a wasteful number, since it uses less digits than its factorization.

84331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 512 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 84331 is about 290.3980027480. The cubic root of 84331 is about 43.8526406420.

Adding to 84331 its reverse (13348), we get a palindrome (97679).

The spelling of 84331 in words is "eighty-four thousand, three hundred thirty-one".