87287267 has 4 divisors (see below), whose sum is σ = 87359520. Its totient is φ = 87215016.

The previous prime is 87287261. The next prime is 87287269. The reversal of 87287267 is 76278278.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 87287267 - 2²² = 83092963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87287261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34283 + ... + 36740.

It is an arithmetic number, because the mean of its divisors is an integer number (21839880).

Almost surely, 2^87287267 is an apocalyptic number.

87287267 is a deficient number, since it is larger than the sum of its proper divisors (72253).

87287267 is a wasteful number, since it uses less digits than its factorization.

87287267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72252.

The product of its digits is 526848, while the sum is 47.

The square root of 87287267 is about 9342.7654899393. The cubic root of 87287267 is about 443.5919251287.

The spelling of 87287267 in words is "eighty-seven million, two hundred eighty-seven thousand, two hundred sixty-seven".