9799939 has 8 divisors (see below), whose sum is σ = 10419840. Its totient is φ = 9184896.

The previous prime is 9799927. The next prime is 9799957. The reversal of 9799939 is 9399979.

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

It is not a de Polignac number, because 9799939 - 2²³ = 1411331 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 9799939.

It is not an unprimeable number, because it can be changed into a prime (9799969) 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, 3502 + ... + 5644.

It is an arithmetic number, because the mean of its divisors is an integer number (1302480).

Almost surely, 2^9799939 is an apocalyptic number.

9799939 is a deficient number, since it is larger than the sum of its proper divisors (619901).

9799939 is a wasteful number, since it uses less digits than its factorization.

9799939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429.

The product of its digits is 1240029, while the sum is 55.

The square root of 9799939 is about 3130.4854256169. The cubic root of 9799939 is about 213.9970521037.

The spelling of 9799939 in words is "nine million, seven hundred ninety-nine thousand, nine hundred thirty-nine".