247235227 has 2 divisors, whose sum is σ = 247235228. Its totient is φ = 247235226.

The previous prime is 247235189. The next prime is 247235231. The reversal of 247235227 is 722532742.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 247235227 - 2⁷ = 247235099 is a prime.

It is a super-2 number, since 2×247235227² = 122250514939483058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247235192 and 247235201.

It is not a weakly prime, because it can be changed into another prime (247235297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123617613 + 123617614.

It is an arithmetic number, because the mean of its divisors is an integer number (123617614).

Almost surely, 2^247235227 is an apocalyptic number.

247235227 is a deficient number, since it is larger than the sum of its proper divisors (1).

247235227 is an equidigital number, since it uses as much as digits as its factorization.

247235227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47040, while the sum is 34.

The square root of 247235227 is about 15723.7154324288. The cubic root of 247235227 is about 627.6296474497.

Adding to 247235227 its reverse (722532742), we get a palindrome (969767969).

The spelling of 247235227 in words is "two hundred forty-seven million, two hundred thirty-five thousand, two hundred twenty-seven".