9790 has 16 divisors (see below), whose sum is σ = 19440. Its totient is φ = 3520.

The previous prime is 9787. The next prime is 9791. The reversal of 9790 is 979.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9791) 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, 66 + ... + 154.

It is an arithmetic number, because the mean of its divisors is an integer number (1215).

2⁹⁷⁹⁰ is an apocalyptic number.

9790 is a deficient number, since it is larger than the sum of its proper divisors (9650).

9790 is a wasteful number, since it uses less digits than its factorization.

9790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107.

The product of its (nonzero) digits is 567, while the sum is 25.

The square root of 9790 is about 98.9444288477. The cubic root of 9790 is about 21.3924683077.

The spelling of 9790 in words is "nine thousand, seven hundred ninety".