87227287 has 4 divisors (see below), whose sum is σ = 99688336. Its totient is φ = 74766240.

The previous prime is 87227281. The next prime is 87227303. The reversal of 87227287 is 78272278.

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 87227287 - 2¹¹ = 87225239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87227281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6230514 + ... + 6230527.

It is an arithmetic number, because the mean of its divisors is an integer number (24922084).

Almost surely, 2^87227287 is an apocalyptic number.

87227287 is a deficient number, since it is larger than the sum of its proper divisors (12461049).

87227287 is a wasteful number, since it uses less digits than its factorization.

87227287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12461048.

The product of its digits is 175616, while the sum is 43.

The square root of 87227287 is about 9339.5549679843. The cubic root of 87227287 is about 443.4902961771.

The spelling of 87227287 in words is "eighty-seven million, two hundred twenty-seven thousand, two hundred eighty-seven".