9668529 has 24 divisors (see below), whose sum is σ = 15927912. Its totient is φ = 5598720.

The previous prime is 9668521. The next prime is 9668537. The reversal of 9668529 is 9258669.

9668529 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9668521) and next prime (9668537).

It can be written as a sum of positive squares in 4 ways, for example, as 3027600 + 6640929 = 1740^2 + 2577^2 .

It is not a de Polignac number, because 9668529 - 2³ = 9668521 is a prime.

It is an Ulam number.

9668529 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9668521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 442 + ... + 4419.

It is an arithmetic number, because the mean of its divisors is an integer number (663663).

Almost surely, 2^9668529 is an apocalyptic number.

It is an amenable number.

9668529 is a deficient number, since it is larger than the sum of its proper divisors (6259383).

9668529 is a wasteful number, since it uses less digits than its factorization.

9668529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4897 (or 4894 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 9668529 is about 3109.4258312428. The cubic root of 9668529 is about 213.0362300337.

The spelling of 9668529 in words is "nine million, six hundred sixty-eight thousand, five hundred twenty-nine".