71329471 has 2 divisors, whose sum is σ = 71329472. Its totient is φ = 71329470.

The previous prime is 71329441. The next prime is 71329483. The reversal of 71329471 is 17492317.

It is a strong prime.

It is an emirp because it is prime and its reverse (17492317) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71329471 - 2⁷ = 71329343 is a prime.

It is a super-3 number, since 3×71329471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71329411) 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, 35664735 + 35664736.

It is an arithmetic number, because the mean of its divisors is an integer number (35664736).

Almost surely, 2^71329471 is an apocalyptic number.

71329471 is a deficient number, since it is larger than the sum of its proper divisors (1).

71329471 is an equidigital number, since it uses as much as digits as its factorization.

71329471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 34.

The square root of 71329471 is about 8445.6776519117. The cubic root of 71329471 is about 414.7212934889.

The spelling of 71329471 in words is "seventy-one million, three hundred twenty-nine thousand, four hundred seventy-one".