9009691 has 8 divisors (see below), whose sum is σ = 9461520. Its totient is φ = 8567328.

The previous prime is 9009683. The next prime is 9009697. The reversal of 9009691 is 1969009.

It is a happy number.

9009691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9009691 - 2³ = 9009683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9009697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376 + ... + 4261.

It is an arithmetic number, because the mean of its divisors is an integer number (1182690).

Almost surely, 2^9009691 is an apocalyptic number.

9009691 is a deficient number, since it is larger than the sum of its proper divisors (451829).

9009691 is a wasteful number, since it uses less digits than its factorization.

9009691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4733.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 9009691 is about 3001.6147321067. The cubic root of 9009691 is about 208.0830151252.

The spelling of 9009691 in words is "nine million, nine thousand, six hundred ninety-one".