84542 has 8 divisors (see below), whose sum is σ = 130032. Its totient is φ = 41200.

The previous prime is 84533. The next prime is 84551. The reversal of 84542 is 24548.

It is an interprime number because it is at equal distance from previous prime (84533) and next prime (84551).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434 + ... + 597.

It is an arithmetic number, because the mean of its divisors is an integer number (16254).

2⁸⁴⁵⁴² is an apocalyptic number.

84542 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

84542 is a deficient number, since it is larger than the sum of its proper divisors (45490).

84542 is a wasteful number, since it uses less digits than its factorization.

84542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074.

The product of its digits is 1280, while the sum is 23.

The square root of 84542 is about 290.7610702966. The cubic root of 84542 is about 43.8891839488.

It can be divided in two parts, 84 and 542, that added together give a palindrome (626).

The spelling of 84542 in words is "eighty-four thousand, five hundred forty-two".