84858 has 8 divisors (see below), whose sum is σ = 169728. Its totient is φ = 28284.

The previous prime is 84857. The next prime is 84859. The reversal of 84858 is 85848.

It is an interprime number because it is at equal distance from previous prime (84857) and next prime (84859).

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

84858 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (84857) 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, 7066 + ... + 7077.

It is an arithmetic number, because the mean of its divisors is an integer number (21216).

2⁸⁴⁸⁵⁸ is an apocalyptic number.

84858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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 (84864).

84858 is a wasteful number, since it uses less digits than its factorization.

84858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14148.

The product of its digits is 10240, while the sum is 33.

The square root of 84858 is about 291.3039649576. The cubic root of 84858 is about 43.9437987681.

Subtracting 84858 from its reverse (85848), we obtain a triangular number (990 = T₄₄).

The spelling of 84858 in words is "eighty-four thousand, eight hundred fifty-eight".