87284 has 6 divisors (see below), whose sum is σ = 152754. Its totient is φ = 43640.

The previous prime is 87281. The next prime is 87293. The reversal of 87284 is 48278.

It can be written as a sum of positive squares in only one way, i.e., 77284 + 10000 = 278^2 + 100^2 .

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10907 + ... + 10914.

It is an arithmetic number, because the mean of its divisors is an integer number (25459).

2⁸⁷²⁸⁴ is an apocalyptic number.

It is an amenable number.

87284 is a deficient number, since it is larger than the sum of its proper divisors (65470).

87284 is a wasteful number, since it uses less digits than its factorization.

87284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21825 (or 21823 counting only the distinct ones).

The product of its digits is 3584, while the sum is 29.

The square root of 87284 is about 295.4386569154. The cubic root of 87284 is about 44.3586390786.

The spelling of 87284 in words is "eighty-seven thousand, two hundred eighty-four".