87786227 has 2 divisors, whose sum is σ = 87786228. Its totient is φ = 87786226.

The previous prime is 87786221. The next prime is 87786229. The reversal of 87786227 is 72268778.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87786227 - 2⁴ = 87786211 is a prime.

Together with 87786229, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87786221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43893113 + 43893114.

It is an arithmetic number, because the mean of its divisors is an integer number (43893114).

Almost surely, 2^87786227 is an apocalyptic number.

87786227 is a deficient number, since it is larger than the sum of its proper divisors (1).

87786227 is an equidigital number, since it uses as much as digits as its factorization.

87786227 is an odious number, because the sum of its binary digits is odd.

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

The square root of 87786227 is about 9369.4304522740. The cubic root of 87786227 is about 444.4355541810.

The spelling of 87786227 in words is "eighty-seven million, seven hundred eighty-six thousand, two hundred twenty-seven".