43320941 has 2 divisors, whose sum is σ = 43320942. Its totient is φ = 43320940.

The previous prime is 43320917. The next prime is 43320943. The reversal of 43320941 is 14902334.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42954916 + 366025 = 6554^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 43320941 - 2⁶ = 43320877 is a prime.

It is a Sophie Germain prime.

Together with 43320943, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 43320941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43320943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21660470 + 21660471.

It is an arithmetic number, because the mean of its divisors is an integer number (21660471).

Almost surely, 2^43320941 is an apocalyptic number.

It is an amenable number.

43320941 is a deficient number, since it is larger than the sum of its proper divisors (1).

43320941 is an equidigital number, since it uses as much as digits as its factorization.

43320941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 43320941 is about 6581.8645534529. The cubic root of 43320941 is about 351.2092620442.

The spelling of 43320941 in words is "forty-three million, three hundred twenty thousand, nine hundred forty-one".