9691573 has 2 divisors, whose sum is σ = 9691574. Its totient is φ = 9691572.

The previous prime is 9691559. The next prime is 9691589. The reversal of 9691573 is 3751969.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9622404 + 69169 = 3102^2 + 263^2 .

It is a cyclic number.

It is not a de Polignac number, because 9691573 - 2⁹ = 9691061 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9691523) 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, 4845786 + 4845787.

It is an arithmetic number, because the mean of its divisors is an integer number (4845787).

Almost surely, 2^9691573 is an apocalyptic number.

It is an amenable number.

9691573 is a deficient number, since it is larger than the sum of its proper divisors (1).

9691573 is an equidigital number, since it uses as much as digits as its factorization.

9691573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030, while the sum is 40.

The square root of 9691573 is about 3113.1291332034. The cubic root of 9691573 is about 213.2053461365.

The spelling of 9691573 in words is "nine million, six hundred ninety-one thousand, five hundred seventy-three".