84247227 has 6 divisors (see below), whose sum is σ = 121690452. Its totient is φ = 56164812.

The previous prime is 84247213. The next prime is 84247237. The reversal of 84247227 is 72274248.

84247227 is a `hidden beast` number, since 8 + 424 + 7 + 227 = 666.

It is not a de Polignac number, because 84247227 - 2⁸ = 84246971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84247191 and 84247200.

It is not an unprimeable number, because it can be changed into a prime (84247237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4680393 + ... + 4680410.

It is an arithmetic number, because the mean of its divisors is an integer number (20281742).

Almost surely, 2^84247227 is an apocalyptic number.

84247227 is a deficient number, since it is larger than the sum of its proper divisors (37443225).

84247227 is a wasteful number, since it uses less digits than its factorization.

84247227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9360809 (or 9360806 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 84247227 is about 9178.6288191647. The cubic root of 84247227 is about 438.3811500539.

It can be divided in two parts, 8424 and 7227, that added together give a palindrome (15651).

The spelling of 84247227 in words is "eighty-four million, two hundred forty-seven thousand, two hundred twenty-seven".