9799013520 has 120 divisors (see below), whose sum is σ = 34844182776. Its totient is φ = 2459357184.

The previous prime is 9799013519. The next prime is 9799013531. The reversal of 9799013520 is 253109979.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 248251536 + 9550761984 = 15756^2 + 97728^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 388047 + ... + 412526.

Almost surely, 2^9799013520 is an apocalyptic number.

9799013520 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9799013520 is an abundant number, since it is smaller than the sum of its proper divisors (25045169256).

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

9799013520 is a wasteful number, since it uses less digits than its factorization.

9799013520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800609 (or 800600 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 9799013520 is about 98989.9667643140. The cubic root of 9799013520 is about 2139.9031545541.

The spelling of 9799013520 in words is "nine billion, seven hundred ninety-nine million, thirteen thousand, five hundred twenty".