82642 has 8 divisors (see below), whose sum is σ = 141696. Its totient is φ = 35412.

The previous prime is 82633. The next prime is 82651. The reversal of 82642 is 24628.

It is an interprime number because it is at equal distance from previous prime (82633) and next prime (82651).

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

It is an unprimeable number.

82642 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2938 + ... + 2965.

It is an arithmetic number, because the mean of its divisors is an integer number (17712).

2⁸²⁶⁴² is an apocalyptic number.

82642 is a deficient number, since it is larger than the sum of its proper divisors (59054).

82642 is a wasteful number, since it uses less digits than its factorization.

82642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5912.

The product of its digits is 768, while the sum is 22.

The square root of 82642 is about 287.4752163231. The cubic root of 82642 is about 43.5579006134.

It can be divided in two parts, 826 and 42, that added together give a palindrome (868).

The spelling of 82642 in words is "eighty-two thousand, six hundred forty-two".