2798131 has 8 divisors (see below), whose sum is σ = 3250784. Its totient is φ = 2358720.

The previous prime is 2798129. The next prime is 2798137. The reversal of 2798131 is 1318972.

2798131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2798131 - 2¹ = 2798129 is a prime.

It is a super-2 number, since 2×2798131² = 15659074186322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2798093 and 2798102.

It is not an unprimeable number, because it can be changed into a prime (2798137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2850 + ... + 3703.

It is an arithmetic number, because the mean of its divisors is an integer number (406348).

2^2798131 is an apocalyptic number.

2798131 is a deficient number, since it is larger than the sum of its proper divisors (452653).

2798131 is an equidigital number, since it uses as much as digits as its factorization.

2798131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6621.

The product of its digits is 3024, while the sum is 31.

The square root of 2798131 is about 1672.7614892745. The cubic root of 2798131 is about 140.9146071816.

The spelling of 2798131 in words is "two million, seven hundred ninety-eight thousand, one hundred thirty-one".