43990601 has 2 divisors, whose sum is σ = 43990602. Its totient is φ = 43990600.

The previous prime is 43990553. The next prime is 43990607. The reversal of 43990601 is 10609934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42562576 + 1428025 = 6524^2 + 1195^2 .

It is a cyclic number.

It is not a de Polignac number, because 43990601 - 2¹⁰ = 43989577 is a prime.

It is not a weakly prime, because it can be changed into another prime (43990607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21995300 + 21995301.

It is an arithmetic number, because the mean of its divisors is an integer number (21995301).

Almost surely, 2^43990601 is an apocalyptic number.

It is an amenable number.

43990601 is a deficient number, since it is larger than the sum of its proper divisors (1).

43990601 is an equidigital number, since it uses as much as digits as its factorization.

43990601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 43990601 is about 6632.5410665898. The cubic root of 43990601 is about 353.0096940576.

The spelling of 43990601 in words is "forty-three million, nine hundred ninety thousand, six hundred one".