87382 has 4 divisors (see below), whose sum is σ = 131076. Its totient is φ = 43690.

The previous prime is 87359. The next prime is 87383. The reversal of 87382 is 28378.

It is a happy number.

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

It is a super-2 number, since 2×87382² = 15271227848, which contains 22 as substring.

It is a plaindrome in base 4 and base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 87382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87383) by changing a digit.

87382 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21844 + ... + 21847.

It is an arithmetic number, because the mean of its divisors is an integer number (32769).

87382 is a Friedman number, since it can be written as (8^7/8+2)/3, using all its digits and the basic arithmetic operations.

2⁸⁷³⁸² is an apocalyptic number.

87382 is a deficient number, since it is larger than the sum of its proper divisors (43694).

87382 is a wasteful number, since it uses less digits than its factorization.

87382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43693.

The product of its digits is 2688, while the sum is 28.

The square root of 87382 is about 295.6044654602. The cubic root of 87382 is about 44.3752344099.

The spelling of 87382 in words is "eighty-seven thousand, three hundred eighty-two".