43063409 has 2 divisors, whose sum is σ = 43063410. Its totient is φ = 43063408.

The previous prime is 43063399. The next prime is 43063439. The reversal of 43063409 is 90436034.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42289009 + 774400 = 6503^2 + 880^2 .

It is a cyclic number.

It is not a de Polignac number, because 43063409 - 2²⁴ = 26286193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43063439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21531704 + 21531705.

It is an arithmetic number, because the mean of its divisors is an integer number (21531705).

Almost surely, 2^43063409 is an apocalyptic number.

It is an amenable number.

43063409 is a deficient number, since it is larger than the sum of its proper divisors (1).

43063409 is an equidigital number, since it uses as much as digits as its factorization.

43063409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 43063409 is about 6562.2716341218. The cubic root of 43063409 is about 350.5119284125.

The spelling of 43063409 in words is "forty-three million, sixty-three thousand, four hundred nine".