71394227 has 2 divisors, whose sum is σ = 71394228. Its totient is φ = 71394226.

The previous prime is 71394221. The next prime is 71394283. The reversal of 71394227 is 72249317.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71394227 - 2²⁰ = 70345651 is a prime.

It is not a weakly prime, because it can be changed into another prime (71394221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35697113 + 35697114.

It is an arithmetic number, because the mean of its divisors is an integer number (35697114).

Almost surely, 2^71394227 is an apocalyptic number.

71394227 is a deficient number, since it is larger than the sum of its proper divisors (1).

71394227 is an equidigital number, since it uses as much as digits as its factorization.

71394227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 35.

The square root of 71394227 is about 8449.5104591923. The cubic root of 71394227 is about 414.8467562132.

The spelling of 71394227 in words is "seventy-one million, three hundred ninety-four thousand, two hundred twenty-seven".