9669791 has 4 divisors (see below), whose sum is σ = 9676800. Its totient is φ = 9662784.

The previous prime is 9669773. The next prime is 9669811. The reversal of 9669791 is 1979669.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1979669 = 1283 ⋅1543.

It is a cyclic number.

It is not a de Polignac number, because 9669791 - 2¹⁴ = 9653407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9669091) 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, 671 + ... + 4448.

It is an arithmetic number, because the mean of its divisors is an integer number (2419200).

Almost surely, 2^9669791 is an apocalyptic number.

9669791 is a deficient number, since it is larger than the sum of its proper divisors (7009).

9669791 is a wasteful number, since it uses less digits than its factorization.

9669791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7008.

The product of its digits is 183708, while the sum is 47.

The square root of 9669791 is about 3109.6287559772. The cubic root of 9669791 is about 213.0454985937.

The spelling of 9669791 in words is "nine million, six hundred sixty-nine thousand, seven hundred ninety-one".