71409343 has 2 divisors, whose sum is σ = 71409344. Its totient is φ = 71409342.

The previous prime is 71409329. The next prime is 71409347. The reversal of 71409343 is 34390417.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71409343 - 2¹⁷ = 71278271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71409347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35704671 + 35704672.

It is an arithmetic number, because the mean of its divisors is an integer number (35704672).

Almost surely, 2^71409343 is an apocalyptic number.

71409343 is a deficient number, since it is larger than the sum of its proper divisors (1).

71409343 is an equidigital number, since it uses as much as digits as its factorization.

71409343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 71409343 is about 8450.4049015417. The cubic root of 71409343 is about 414.8760320679.

The spelling of 71409343 in words is "seventy-one million, four hundred nine thousand, three hundred forty-three".