87700 has 18 divisors (see below), whose sum is σ = 190526. Its totient is φ = 35040.

The previous prime is 87697. The next prime is 87701. The reversal of 87700 is 778.

It can be written as a sum of positive squares in 3 ways, for example, as 15876 + 71824 = 126^2 + 268^2 .

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 339 + ... + 538.

2⁸⁷⁷⁰⁰ is an apocalyptic number.

It is an amenable number.

87700 is an abundant number, since it is smaller than the sum of its proper divisors (102826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87700 is a wasteful number, since it uses less digits than its factorization.

87700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 87700 is about 296.1418578992. The cubic root of 87700 is about 44.4289992628.

Subtracting from 87700 its sum of digits (22), we obtain a palindrome (87678).

It can be divided in two parts, 87 and 700, that added together give a palindrome (787).

The spelling of 87700 in words is "eighty-seven thousand, seven hundred".