966363581 has 2 divisors, whose sum is σ = 966363582. Its totient is φ = 966363580.

The previous prime is 966363577. The next prime is 966363637. The reversal of 966363581 is 185363669.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 621704356 + 344659225 = 24934^2 + 18565^2 .

It is a cyclic number.

It is not a de Polignac number, because 966363581 - 2² = 966363577 is a prime.

It is a super-2 number, since 2×966363581² = 1867717141366287122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (966365581) 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, 483181790 + 483181791.

It is an arithmetic number, because the mean of its divisors is an integer number (483181791).

Almost surely, 2^966363581 is an apocalyptic number.

It is an amenable number.

966363581 is a deficient number, since it is larger than the sum of its proper divisors (1).

966363581 is an equidigital number, since it uses as much as digits as its factorization.

966363581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 47.

The square root of 966363581 is about 31086.3889990459. The cubic root of 966363581 is about 988.6597450757.

The spelling of 966363581 in words is "nine hundred sixty-six million, three hundred sixty-three thousand, five hundred eighty-one".