43597049 has 2 divisors, whose sum is σ = 43597050. Its totient is φ = 43597048.

The previous prime is 43597013. The next prime is 43597091. The reversal of 43597049 is 94079534.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28697449 + 14899600 = 5357^2 + 3860^2 .

It is a cyclic number.

It is not a de Polignac number, because 43597049 - 2¹² = 43592953 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 43596997 and 43597015.

It is not a weakly prime, because it can be changed into another prime (43597009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21798524 + 21798525.

It is an arithmetic number, because the mean of its divisors is an integer number (21798525).

Almost surely, 2^43597049 is an apocalyptic number.

It is an amenable number.

43597049 is a deficient number, since it is larger than the sum of its proper divisors (1).

43597049 is an equidigital number, since it uses as much as digits as its factorization.

43597049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 43597049 is about 6602.8061458746. The cubic root of 43597049 is about 351.9538318624.

The spelling of 43597049 in words is "forty-three million, five hundred ninety-seven thousand, forty-nine".