9791642 has 16 divisors (see below), whose sum is σ = 16844352. Its totient is φ = 4181760.

The previous prime is 9791641. The next prime is 9791653. The reversal of 9791642 is 2461979.

It is a junction number, because it is equal to n+sod(n) for n = 9791596 and 9791605.

It is not an unprimeable number, because it can be changed into a prime (9791641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3578 + ... + 5690.

It is an arithmetic number, because the mean of its divisors is an integer number (1052772).

Almost surely, 2^9791642 is an apocalyptic number.

9791642 is a deficient number, since it is larger than the sum of its proper divisors (7052710).

9791642 is a wasteful number, since it uses less digits than its factorization.

9791642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453.

The product of its digits is 27216, while the sum is 38.

The square root of 9791642 is about 3129.1599511690. The cubic root of 9791642 is about 213.9366423789.

The spelling of 9791642 in words is "nine million, seven hundred ninety-one thousand, six hundred forty-two".