2799731121 has 8 divisors (see below), whose sum is σ = 4072336224. Its totient is φ = 1696806720.

The previous prime is 2799731107. The next prime is 2799731159. The reversal of 2799731121 is 1211379972.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-2799731121 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2799731191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42420136 + ... + 42420201.

It is an arithmetic number, because the mean of its divisors is an integer number (509042028).

Almost surely, 2^2799731121 is an apocalyptic number.

It is an amenable number.

2799731121 is a deficient number, since it is larger than the sum of its proper divisors (1272605103).

2799731121 is a wasteful number, since it uses less digits than its factorization.

2799731121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84840351.

The product of its digits is 47628, while the sum is 42.

The square root of 2799731121 is about 52912.4854925565. The cubic root of 2799731121 is about 1409.4146290012.

The spelling of 2799731121 in words is "two billion, seven hundred ninety-nine million, seven hundred thirty-one thousand, one hundred twenty-one".