2982891 has 4 divisors (see below), whose sum is σ = 3977192. Its totient is φ = 1988592.

The previous prime is 2982887. The next prime is 2982899. The reversal of 2982891 is 1982892.

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

It is not a de Polignac number, because 2982891 - 2² = 2982887 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2982899) 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 3 ways as a sum of consecutive naturals, for example, 497146 + ... + 497151.

It is an arithmetic number, because the mean of its divisors is an integer number (994298).

2^2982891 is an apocalyptic number.

2982891 is a deficient number, since it is larger than the sum of its proper divisors (994301).

2982891 is an equidigital number, since it uses as much as digits as its factorization.

2982891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994300.

The product of its digits is 20736, while the sum is 39.

The square root of 2982891 is about 1727.1048028420. The cubic root of 2982891 is about 143.9502625295.

Subtracting from 2982891 its reverse (1982892), we obtain a palindrome (999999).

The spelling of 2982891 in words is "two million, nine hundred eighty-two thousand, eight hundred ninety-one".