9800999 has 8 divisors (see below), whose sum is σ = 10596432. Its totient is φ = 9011520.

The previous prime is 9800963. The next prime is 9801019. The reversal of 9800999 is 9990089.

9800999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9800999 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9800909) 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, 2312 + ... + 4994.

It is an arithmetic number, because the mean of its divisors is an integer number (1324554).

Almost surely, 2^9800999 is an apocalyptic number.

9800999 is a deficient number, since it is larger than the sum of its proper divisors (795433).

9800999 is a wasteful number, since it uses less digits than its factorization.

9800999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2977.

The product of its (nonzero) digits is 52488, while the sum is 44.

The square root of 9800999 is about 3130.6547238557. The cubic root of 9800999 is about 214.0047674135.

The spelling of 9800999 in words is "nine million, eight hundred thousand, nine hundred ninety-nine".