87244 has 12 divisors (see below), whose sum is σ = 161784. Its totient is φ = 41024.

The previous prime is 87223. The next prime is 87251. The reversal of 87244 is 44278.

It is a super-2 number, since 2×87244² = 15223031072, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574 + ... + 709.

It is an arithmetic number, because the mean of its divisors is an integer number (13482).

2⁸⁷²⁴⁴ is an apocalyptic number.

It is an amenable number.

87244 is a deficient number, since it is larger than the sum of its proper divisors (74540).

87244 is a wasteful number, since it uses less digits than its factorization.

87244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304 (or 1302 counting only the distinct ones).

The product of its digits is 1792, while the sum is 25.

The square root of 87244 is about 295.3709532097. The cubic root of 87244 is about 44.3518619042.

The spelling of 87244 in words is "eighty-seven thousand, two hundred forty-four".