9799943 has 4 divisors (see below), whose sum is σ = 10039008. Its totient is φ = 9560880.

The previous prime is 9799927. The next prime is 9799957. The reversal of 9799943 is 3499979.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9799943 - 2⁴ = 9799927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9799891 and 9799900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9799903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119471 + ... + 119552.

It is an arithmetic number, because the mean of its divisors is an integer number (2509752).

Almost surely, 2^9799943 is an apocalyptic number.

9799943 is a deficient number, since it is larger than the sum of its proper divisors (239065).

9799943 is a wasteful number, since it uses less digits than its factorization.

9799943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239064.

The product of its digits is 551124, while the sum is 50.

The square root of 9799943 is about 3130.4860644954. The cubic root of 9799943 is about 213.9970812191.

The spelling of 9799943 in words is "nine million, seven hundred ninety-nine thousand, nine hundred forty-three".