9799720 has 64 divisors (see below), whose sum is σ = 26035200. Its totient is φ = 3248640.

The previous prime is 9799703. The next prime is 9799733. The reversal of 9799720 is 279979.

It is a super-3 number, since 3×9799720³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8116 + ... + 9244.

It is an arithmetic number, because the mean of its divisors is an integer number (406800).

Almost surely, 2^9799720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9799720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13017600).

9799720 is an abundant number, since it is smaller than the sum of its proper divisors (16235480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9799720 is a wasteful number, since it uses less digits than its factorization.

9799720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178 (or 1174 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 43.

The square root of 9799720 is about 3130.4504468207. The cubic root of 9799720 is about 213.9954580222.

The spelling of 9799720 in words is "nine million, seven hundred ninety-nine thousand, seven hundred twenty".