71047043 has 2 divisors, whose sum is σ = 71047044. Its totient is φ = 71047042.

The previous prime is 71047027. The next prime is 71047117. The reversal of 71047043 is 34074017.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71047043 - 2⁴ = 71047027 is a prime.

It is not a weakly prime, because it can be changed into another prime (71047003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35523521 + 35523522.

It is an arithmetic number, because the mean of its divisors is an integer number (35523522).

Almost surely, 2^71047043 is an apocalyptic number.

71047043 is a deficient number, since it is larger than the sum of its proper divisors (1).

71047043 is an equidigital number, since it uses as much as digits as its factorization.

71047043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 71047043 is about 8428.9407994125. The cubic root of 71047043 is about 414.1732085022.

The spelling of 71047043 in words is "seventy-one million, forty-seven thousand, forty-three".