9690791 has 4 divisors (see below), whose sum is σ = 10571784. Its totient is φ = 8809800.

The previous prime is 9690787. The next prime is 9690803. The reversal of 9690791 is 1970969.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9690791 - 2² = 9690787 is a prime.

It is a super-2 number, since 2×9690791² = 187822860411362, 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 (9690701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440480 + ... + 440501.

It is an arithmetic number, because the mean of its divisors is an integer number (2642946).

Almost surely, 2^9690791 is an apocalyptic number.

9690791 is a deficient number, since it is larger than the sum of its proper divisors (880993).

9690791 is a wasteful number, since it uses less digits than its factorization.

9690791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880992.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 9690791 is about 3113.0035335669. The cubic root of 9690791 is about 213.1996115647.

The spelling of 9690791 in words is "nine million, six hundred ninety thousand, seven hundred ninety-one".