71429443 has 2 divisors, whose sum is σ = 71429444. Its totient is φ = 71429442.

The previous prime is 71429441. The next prime is 71429489. The reversal of 71429443 is 34492417.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (34492417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71429443 - 2¹ = 71429441 is a prime.

It is a super-3 number, since 3×71429443³ (a number of 25 digits) contains 333 as substring.

Together with 71429441, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 71429399 and 71429408.

It is not a weakly prime, because it can be changed into another prime (71429441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35714721 + 35714722.

It is an arithmetic number, because the mean of its divisors is an integer number (35714722).

Almost surely, 2^71429443 is an apocalyptic number.

71429443 is a deficient number, since it is larger than the sum of its proper divisors (1).

71429443 is an equidigital number, since it uses as much as digits as its factorization.

71429443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 34.

The square root of 71429443 is about 8451.5941099890. The cubic root of 71429443 is about 414.9149542668.

It can be divided in two parts, 7 and 1429443, that multiplied together give a triangular number (10006101 = T₄₄₇₃).

The spelling of 71429443 in words is "seventy-one million, four hundred twenty-nine thousand, four hundred forty-three".