9798665 has 8 divisors (see below), whose sum is σ = 12164040. Its totient is φ = 7568512.

The previous prime is 9798643. The next prime is 9798703. The reversal of 9798665 is 5668979.

9798665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 822649 + 8976016 = 907^2 + 2996^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 9798665 - 2⁶ = 9798601 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33644 + ... + 33933.

It is an arithmetic number, because the mean of its divisors is an integer number (1520505).

Almost surely, 2^9798665 is an apocalyptic number.

It is an amenable number.

9798665 is a deficient number, since it is larger than the sum of its proper divisors (2365375).

9798665 is a wasteful number, since it uses less digits than its factorization.

9798665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67611.

The product of its digits is 816480, while the sum is 50.

The square root of 9798665 is about 3130.2819361840. The cubic root of 9798665 is about 213.9877784385.

The spelling of 9798665 in words is "nine million, seven hundred ninety-eight thousand, six hundred sixty-five".