2798191 has 8 divisors (see below), whose sum is σ = 3078144. Its totient is φ = 2522520.

The previous prime is 2798177. The next prime is 2798207. The reversal of 2798191 is 1918972.

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

It is not a de Polignac number, because 2798191 - 2⁹ = 2797679 is a prime.

It is a Duffinian number.

2798191 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2798191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2798141) 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, 396 + ... + 2398.

It is an arithmetic number, because the mean of its divisors is an integer number (384768).

2^2798191 is an apocalyptic number.

2798191 is a deficient number, since it is larger than the sum of its proper divisors (279953).

2798191 is a wasteful number, since it uses less digits than its factorization.

2798191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141.

The product of its digits is 9072, while the sum is 37.

The square root of 2798191 is about 1672.7794235942. The cubic root of 2798191 is about 140.9156143797.

The spelling of 2798191 in words is "two million, seven hundred ninety-eight thousand, one hundred ninety-one".