943506961 has 2 divisors, whose sum is σ = 943506962. Its totient is φ = 943506960.

The previous prime is 943506929. The next prime is 943507013. The reversal of 943506961 is 169605349.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 913913361 + 29593600 = 30231^2 + 5440^2 .

It is a cyclic number.

It is not a de Polignac number, because 943506961 - 2⁵ = 943506929 is a prime.

It is not a weakly prime, because it can be changed into another prime (943506911) 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, 471753480 + 471753481.

It is an arithmetic number, because the mean of its divisors is an integer number (471753481).

Almost surely, 2^943506961 is an apocalyptic number.

It is an amenable number.

943506961 is a deficient number, since it is larger than the sum of its proper divisors (1).

943506961 is an equidigital number, since it uses as much as digits as its factorization.

943506961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 943506961 is about 30716.5584172446. The cubic root of 943506961 is about 980.8028132811.

The spelling of 943506961 in words is "nine hundred forty-three million, five hundred six thousand, nine hundred sixty-one".