71670227 has 2 divisors, whose sum is σ = 71670228. Its totient is φ = 71670226.

The previous prime is 71670217. The next prime is 71670259. The reversal of 71670227 is 72207617.

It is a happy number.

It is an a-pointer prime, because the next prime (71670259) can be obtained adding 71670227 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71670227 - 2⁴ = 71670211 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 71670193 and 71670202.

It is not a weakly prime, because it can be changed into another prime (71670217) 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 as a sum of consecutive naturals, namely, 35835113 + 35835114.

It is an arithmetic number, because the mean of its divisors is an integer number (35835114).

Almost surely, 2^71670227 is an apocalyptic number.

71670227 is a deficient number, since it is larger than the sum of its proper divisors (1).

71670227 is an equidigital number, since it uses as much as digits as its factorization.

71670227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 71670227 is about 8465.8270121708. The cubic root of 71670227 is about 415.3806484787.

The spelling of 71670227 in words is "seventy-one million, six hundred seventy thousand, two hundred twenty-seven".