43085297 has 2 divisors, whose sum is σ = 43085298. Its totient is φ = 43085296.

The previous prime is 43085239. The next prime is 43085299. The reversal of 43085297 is 79258034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25411681 + 17673616 = 5041^2 + 4204^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43085297 is a prime.

Together with 43085299, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43085297.

It is not a weakly prime, because it can be changed into another prime (43085299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21542648 + 21542649.

It is an arithmetic number, because the mean of its divisors is an integer number (21542649).

Almost surely, 2^43085297 is an apocalyptic number.

It is an amenable number.

43085297 is a deficient number, since it is larger than the sum of its proper divisors (1).

43085297 is an equidigital number, since it uses as much as digits as its factorization.

43085297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 43085297 is about 6563.9391374387. The cubic root of 43085297 is about 350.5713036904.

The spelling of 43085297 in words is "forty-three million, eighty-five thousand, two hundred ninety-seven".