71321927 has 2 divisors, whose sum is σ = 71321928. Its totient is φ = 71321926.

The previous prime is 71321849. The next prime is 71321947. The reversal of 71321927 is 72912317.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71321927 - 2¹⁶ = 71256391 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 71321893 and 71321902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71321947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35660963 + 35660964.

It is an arithmetic number, because the mean of its divisors is an integer number (35660964).

Almost surely, 2^71321927 is an apocalyptic number.

71321927 is a deficient number, since it is larger than the sum of its proper divisors (1).

71321927 is an equidigital number, since it uses as much as digits as its factorization.

71321927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292, while the sum is 32.

The square root of 71321927 is about 8445.2310211148. The cubic root of 71321927 is about 414.7066722872.

The spelling of 71321927 in words is "seventy-one million, three hundred twenty-one thousand, nine hundred twenty-seven".