43470871 has 2 divisors, whose sum is σ = 43470872. Its totient is φ = 43470870.

The previous prime is 43470859. The next prime is 43470877. The reversal of 43470871 is 17807434.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43470871 - 2⁷ = 43470743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43470877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21735435 + 21735436.

It is an arithmetic number, because the mean of its divisors is an integer number (21735436).

Almost surely, 2^43470871 is an apocalyptic number.

43470871 is a deficient number, since it is larger than the sum of its proper divisors (1).

43470871 is an equidigital number, since it uses as much as digits as its factorization.

43470871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 43470871 is about 6593.2443455404. The cubic root of 43470871 is about 351.6139637359.

The spelling of 43470871 in words is "forty-three million, four hundred seventy thousand, eight hundred seventy-one".