9801790 has 8 divisors (see below), whose sum is σ = 17643240. Its totient is φ = 3920712.

The previous prime is 9801773. The next prime is 9801791. The reversal of 9801790 is 971089.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9801791) 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 3 ways as a sum of consecutive naturals, for example, 490080 + ... + 490099.

It is an arithmetic number, because the mean of its divisors is an integer number (2205405).

Almost surely, 2^9801790 is an apocalyptic number.

9801790 is a deficient number, since it is larger than the sum of its proper divisors (7841450).

9801790 is a wasteful number, since it uses less digits than its factorization.

9801790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980186.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 9801790 is about 3130.7810527087. The cubic root of 9801790 is about 214.0105244191.

The spelling of 9801790 in words is "nine million, eight hundred one thousand, seven hundred ninety".