9043409 has 2 divisors, whose sum is σ = 9043410. Its totient is φ = 9043408.

The previous prime is 9043387. The next prime is 9043421.

It is a happy number.

9043409 is nontrivially palindromic in base 10.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7840000 + 1203409 = 2800^2 + 1097^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 9043409 - 2¹⁶ = 8977873 is a prime.

It is not a weakly prime, because it can be changed into another prime (9043499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4521704 + 4521705.

It is an arithmetic number, because the mean of its divisors is an integer number (4521705).

Almost surely, 2^9043409 is an apocalyptic number.

It is an amenable number.

9043409 is a deficient number, since it is larger than the sum of its proper divisors (1).

9043409 is an equidigital number, since it uses as much as digits as its factorization.

9043409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 9043409 is about 3007.2261305063. The cubic root of 9043409 is about 208.3422696256.

The spelling of 9043409 in words is "nine million, forty-three thousand, four hundred nine".