966573409 has 2 divisors, whose sum is σ = 966573410. Its totient is φ = 966573408.

The previous prime is 966573359. The next prime is 966573431. The reversal of 966573409 is 904375669.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 488189025 + 478384384 = 22095^2 + 21872^2 .

It is an emirp because it is prime and its reverse (904375669) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 966573409 - 2⁹ = 966572897 is a prime.

It is not a weakly prime, because it can be changed into another prime (966553409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483286704 + 483286705.

It is an arithmetic number, because the mean of its divisors is an integer number (483286705).

Almost surely, 2^966573409 is an apocalyptic number.

It is an amenable number.

966573409 is a deficient number, since it is larger than the sum of its proper divisors (1).

966573409 is an equidigital number, since it uses as much as digits as its factorization.

966573409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 49.

The square root of 966573409 is about 31089.7637334220. The cubic root of 966573409 is about 988.7312962974.

The spelling of 966573409 in words is "nine hundred sixty-six million, five hundred seventy-three thousand, four hundred nine".