9676521 has 6 divisors (see below), whose sum is σ = 13977210. Its totient is φ = 6451008.

The previous prime is 9676483. The next prime is 9676543. The reversal of 9676521 is 1256769.

It can be written as a sum of positive squares in only one way, i.e., 9272025 + 404496 = 3045^2 + 636^2 .

It is a de Polignac number, because none of the positive numbers 2^k-9676521 is a prime.

It is an alternating number because its digits alternate between odd and even.

9676521 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9676021) 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 in 5 ways as a sum of consecutive naturals, for example, 537576 + ... + 537593.

It is an arithmetic number, because the mean of its divisors is an integer number (2329535).

Almost surely, 2^9676521 is an apocalyptic number.

It is an amenable number.

9676521 is a deficient number, since it is larger than the sum of its proper divisors (4300689).

9676521 is a wasteful number, since it uses less digits than its factorization.

9676521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075175 (or 1075172 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 9676521 is about 3110.7106905014. The cubic root of 9676521 is about 213.0949124057.

The spelling of 9676521 in words is "nine million, six hundred seventy-six thousand, five hundred twenty-one".