87243 has 8 divisors (see below), whose sum is σ = 125328. Its totient is φ = 53664.

The previous prime is 87223. The next prime is 87251. The reversal of 87243 is 34278.

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

It is not a de Polignac number, because 87243 - 2⁵ = 87211 is a prime.

It is a super-2 number, since 2×87243² = 15222682098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1080 + ... + 1157.

It is an arithmetic number, because the mean of its divisors is an integer number (15666).

2⁸⁷²⁴³ is an apocalyptic number.

87243 is a deficient number, since it is larger than the sum of its proper divisors (38085).

87243 is a wasteful number, since it uses less digits than its factorization.

87243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253.

The product of its digits is 1344, while the sum is 24.

The square root of 87243 is about 295.3692604182. The cubic root of 87243 is about 44.3516924483.

The spelling of 87243 in words is "eighty-seven thousand, two hundred forty-three".