9689261 has 4 divisors (see below), whose sum is σ = 9697692. Its totient is φ = 9680832.

The previous prime is 9689249. The next prime is 9689263. The reversal of 9689261 is 1629869.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 9647236 + 42025 = 3106^2 + 205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9689261 is a prime.

It is a super-2 number, since 2×9689261² = 187763557452242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9689263) 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 3 ways as a sum of consecutive naturals, for example, 2156 + ... + 4901.

It is an arithmetic number, because the mean of its divisors is an integer number (2424423).

Almost surely, 2^9689261 is an apocalyptic number.

It is an amenable number.

9689261 is a deficient number, since it is larger than the sum of its proper divisors (8431).

9689261 is a wasteful number, since it uses less digits than its factorization.

9689261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8430.

The product of its digits is 46656, while the sum is 41.

The square root of 9689261 is about 3112.7577804898. The cubic root of 9689261 is about 213.1883908579.

The spelling of 9689261 in words is "nine million, six hundred eighty-nine thousand, two hundred sixty-one".