43430071 has 2 divisors, whose sum is σ = 43430072. Its totient is φ = 43430070.

The previous prime is 43430047. The next prime is 43430083. The reversal of 43430071 is 17003434.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43430071 - 2¹³ = 43421879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43460071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21715035 + 21715036.

It is an arithmetic number, because the mean of its divisors is an integer number (21715036).

Almost surely, 2^43430071 is an apocalyptic number.

43430071 is a deficient number, since it is larger than the sum of its proper divisors (1).

43430071 is an equidigital number, since it uses as much as digits as its factorization.

43430071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 43430071 is about 6590.1495430680. The cubic root of 43430071 is about 351.5039257581.

The spelling of 43430071 in words is "forty-three million, four hundred thirty thousand, seventy-one".