87651227 has 2 divisors, whose sum is σ = 87651228. Its totient is φ = 87651226.

The previous prime is 87651163. The next prime is 87651233. The reversal of 87651227 is 72215678.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87651227 - 2⁶ = 87651163 is a prime.

It is not a weakly prime, because it can be changed into another prime (87651247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43825613 + 43825614.

It is an arithmetic number, because the mean of its divisors is an integer number (43825614).

Almost surely, 2^87651227 is an apocalyptic number.

87651227 is a deficient number, since it is larger than the sum of its proper divisors (1).

87651227 is an equidigital number, since it uses as much as digits as its factorization.

87651227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 38.

The square root of 87651227 is about 9362.2234004535. The cubic root of 87651227 is about 444.2076156835.

It can be divided in two parts, 87651 and 227, that added together give a palindrome (87878).

The spelling of 87651227 in words is "eighty-seven million, six hundred fifty-one thousand, two hundred twenty-seven".