87984227 has 4 divisors (see below), whose sum is σ = 88567056. Its totient is φ = 87401400.

The previous prime is 87984217. The next prime is 87984229. The reversal of 87984227 is 72248978.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72248978 = 2 ⋅36124489.

It is a cyclic number.

It is not a de Polignac number, because 87984227 - 2⁸ = 87983971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87984229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291188 + ... + 291489.

It is an arithmetic number, because the mean of its divisors is an integer number (22141764).

Almost surely, 2^87984227 is an apocalyptic number.

87984227 is a deficient number, since it is larger than the sum of its proper divisors (582829).

87984227 is a wasteful number, since it uses less digits than its factorization.

87984227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582828.

The product of its digits is 451584, while the sum is 47.

The square root of 87984227 is about 9379.9907782471. The cubic root of 87984227 is about 444.7694416487.

The spelling of 87984227 in words is "eighty-seven million, nine hundred eighty-four thousand, two hundred twenty-seven".