43968361 has 2 divisors, whose sum is σ = 43968362. Its totient is φ = 43968360.

The previous prime is 43968349. The next prime is 43968367. The reversal of 43968361 is 16386934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28515600 + 15452761 = 5340^2 + 3931^2 .

It is a cyclic number.

It is not a de Polignac number, because 43968361 - 2⁵ = 43968329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43968367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21984180 + 21984181.

It is an arithmetic number, because the mean of its divisors is an integer number (21984181).

Almost surely, 2^43968361 is an apocalyptic number.

It is an amenable number.

43968361 is a deficient number, since it is larger than the sum of its proper divisors (1).

43968361 is an equidigital number, since it uses as much as digits as its factorization.

43968361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 40.

The square root of 43968361 is about 6630.8642724761. The cubic root of 43968361 is about 352.9501945370.

The spelling of 43968361 in words is "forty-three million, nine hundred sixty-eight thousand, three hundred sixty-one".