82851 has 4 divisors (see below), whose sum is σ = 110472. Its totient is φ = 55232.

The previous prime is 82847. The next prime is 82883. The reversal of 82851 is 15828.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82851 - 2² = 82847 is a prime.

It is a D-number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (82811) 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, 13806 + ... + 13811.

It is an arithmetic number, because the mean of its divisors is an integer number (27618).

2⁸²⁸⁵¹ is an apocalyptic number.

82851 is a deficient number, since it is larger than the sum of its proper divisors (27621).

82851 is a wasteful number, since it uses less digits than its factorization.

82851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27620.

The product of its digits is 640, while the sum is 24.

The square root of 82851 is about 287.8384963830. The cubic root of 82851 is about 43.5945887289.

The spelling of 82851 in words is "eighty-two thousand, eight hundred fifty-one".