2798328291 has 32 divisors (see below), whose sum is σ = 4290174720. Its totient is φ = 1606550400.

The previous prime is 2798328289. The next prime is 2798328311. The reversal of 2798328291 is 1928238972.

It is not a de Polignac number, because 2798328291 - 2¹ = 2798328289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2798328251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23136 + ... + 78306.

It is an arithmetic number, because the mean of its divisors is an integer number (134067960).

Almost surely, 2^2798328291 is an apocalyptic number.

2798328291 is a deficient number, since it is larger than the sum of its proper divisors (1491846429).

2798328291 is a wasteful number, since it uses less digits than its factorization.

2798328291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55267.

The product of its digits is 870912, while the sum is 51.

The square root of 2798328291 is about 52899.2276975761. The cubic root of 2798328291 is about 1409.1791897922.

The spelling of 2798328291 in words is "two billion, seven hundred ninety-eight million, three hundred twenty-eight thousand, two hundred ninety-one".