43960649 has 2 divisors, whose sum is σ = 43960650. Its totient is φ = 43960648.

The previous prime is 43960603. The next prime is 43960667. The reversal of 43960649 is 94606934.

43960649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41731600 + 2229049 = 6460^2 + 1493^2 .

It is a cyclic number.

It is not a de Polignac number, because 43960649 - 2²⁰ = 42912073 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (43960949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21980324 + 21980325.

It is an arithmetic number, because the mean of its divisors is an integer number (21980325).

Almost surely, 2^43960649 is an apocalyptic number.

It is an amenable number.

43960649 is a deficient number, since it is larger than the sum of its proper divisors (1).

43960649 is an equidigital number, since it uses as much as digits as its factorization.

43960649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 43960649 is about 6630.2827239870. The cubic root of 43960649 is about 352.9295576442.

The spelling of 43960649 in words is "forty-three million, nine hundred sixty thousand, six hundred forty-nine".