43663049 has 2 divisors, whose sum is σ = 43663050. Its totient is φ = 43663048.

The previous prime is 43663033. The next prime is 43663057. The reversal of 43663049 is 94036634.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42055225 + 1607824 = 6485^2 + 1268^2 .

It is a cyclic number.

It is not a de Polignac number, because 43663049 - 2⁴ = 43663033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43663019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21831524 + 21831525.

It is an arithmetic number, because the mean of its divisors is an integer number (21831525).

Almost surely, 2^43663049 is an apocalyptic number.

It is an amenable number.

43663049 is a deficient number, since it is larger than the sum of its proper divisors (1).

43663049 is an equidigital number, since it uses as much as digits as its factorization.

43663049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 43663049 is about 6607.8021308148. The cubic root of 43663049 is about 352.1313457191.

The spelling of 43663049 in words is "forty-three million, six hundred sixty-three thousand, forty-nine".