43316971 has 2 divisors, whose sum is σ = 43316972. Its totient is φ = 43316970.

The previous prime is 43316963. The next prime is 43316989. The reversal of 43316971 is 17961334.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43316971 - 2³ = 43316963 is a prime.

It is a super-2 number, since 2×43316971² = 3752719953229682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43316921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21658485 + 21658486.

It is an arithmetic number, because the mean of its divisors is an integer number (21658486).

Almost surely, 2^43316971 is an apocalyptic number.

43316971 is a deficient number, since it is larger than the sum of its proper divisors (1).

43316971 is an equidigital number, since it uses as much as digits as its factorization.

43316971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 34.

The square root of 43316971 is about 6581.5629602702. The cubic root of 43316971 is about 351.1985332579.

The spelling of 43316971 in words is "forty-three million, three hundred sixteen thousand, nine hundred seventy-one".