87650 has 12 divisors (see below), whose sum is σ = 163122. Its totient is φ = 35040.

The previous prime is 87649. The next prime is 87671. The reversal of 87650 is 5678.

It can be written as a sum of positive squares in 3 ways, for example, as 38809 + 48841 = 197^2 + 221^2 .

It is an alternating number because its digits alternate between even and odd.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 827 + ... + 926.

2⁸⁷⁶⁵⁰ is an apocalyptic number.

87650 is a deficient number, since it is larger than the sum of its proper divisors (75472).

87650 is a wasteful number, since it uses less digits than its factorization.

87650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765 (or 1760 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 87650 is about 296.0574268617. The cubic root of 87650 is about 44.4205542903.

It can be divided in two parts, 87 and 650, that added together give a palindrome (737).

The spelling of 87650 in words is "eighty-seven thousand, six hundred fifty".