9798749 has 8 divisors (see below), whose sum is σ = 10403640. Its totient is φ = 9197056.

The previous prime is 9798743. The next prime is 9798769. The reversal of 9798749 is 9478979.

9798749 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 1849 + 9796900 = 43^2 + 3130^2 .

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-9798749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9798749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9798743) 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, 9167 + ... + 10179.

It is an arithmetic number, because the mean of its divisors is an integer number (1300455).

Almost surely, 2^9798749 is an apocalyptic number.

It is an amenable number.

9798749 is a deficient number, since it is larger than the sum of its proper divisors (604891).

9798749 is a wasteful number, since it uses less digits than its factorization.

9798749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599.

The product of its digits is 1143072, while the sum is 53.

The square root of 9798749 is about 3130.2953534770. The cubic root of 9798749 is about 213.9883899137.

The spelling of 9798749 in words is "nine million, seven hundred ninety-eight thousand, seven hundred forty-nine".