82618 has 8 divisors (see below), whose sum is σ = 125460. Its totient is φ = 40800.

The previous prime is 82613. The next prime is 82619. The reversal of 82618 is 81628.

It can be written as a sum of positive squares in 2 ways, for example, as 61009 + 21609 = 247^2 + 147^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 82592 and 82601.

It is not an unprimeable number, because it can be changed into a prime (82613) 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, 3 + ... + 406.

2⁸²⁶¹⁸ is an apocalyptic number.

82618 is a deficient number, since it is larger than the sum of its proper divisors (42842).

82618 is a wasteful number, since it uses less digits than its factorization.

82618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512.

The product of its digits is 768, while the sum is 25.

The square root of 82618 is about 287.4334705632. The cubic root of 82618 is about 43.5536836663.

Subtracting from 82618 its reverse (81628), we obtain a triangular number (990 = T₄₄).

The spelling of 82618 in words is "eighty-two thousand, six hundred eighteen".