87266 has 4 divisors (see below), whose sum is σ = 130902. Its totient is φ = 43632.

The previous prime is 87257. The next prime is 87277. The reversal of 87266 is 66278.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 55225 + 32041 = 235^2 + 179^2 .

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

87266 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21815 + ... + 21818.

2⁸⁷²⁶⁶ is an apocalyptic number.

87266 is a deficient number, since it is larger than the sum of its proper divisors (43636).

87266 is a wasteful number, since it uses less digits than its factorization.

87266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43635.

The product of its digits is 4032, while the sum is 29.

The square root of 87266 is about 295.4081921681. The cubic root of 87266 is about 44.3555896064.

It can be divided in two parts, 87 and 266, that added together give a palindrome (353).

The spelling of 87266 in words is "eighty-seven thousand, two hundred sixty-six".