9799021 has 8 divisors (see below), whose sum is σ = 10469304. Its totient is φ = 9139200.

The previous prime is 9799019. The next prime is 9799033. The reversal of 9799021 is 1209979.

9799021 is digitally balanced in base 2 and base 3, because in such bases 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 275625 + 9523396 = 525^2 + 3086^2 .

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

It is not a de Polignac number, because 9799021 - 2¹ = 9799019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9739021) 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, 630 + ... + 4471.

It is an arithmetic number, because the mean of its divisors is an integer number (1308663).

Almost surely, 2^9799021 is an apocalyptic number.

It is an amenable number.

9799021 is a deficient number, since it is larger than the sum of its proper divisors (670283).

9799021 is a wasteful number, since it uses less digits than its factorization.

9799021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 9799021 is about 3130.3387995551. The cubic root of 9799021 is about 213.9903699047.

It can be divided in two parts, 979 and 9021, that added together give a 4-th power (10000 = 10⁴).

The spelling of 9799021 in words is "nine million, seven hundred ninety-nine thousand, twenty-one".