2983891 has 4 divisors (see below), whose sum is σ = 3159432. Its totient is φ = 2808352.

The previous prime is 2983879. The next prime is 2983927. The reversal of 2983891 is 1983892.

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

It is a cyclic number.

It is not a de Polignac number, because 2983891 - 2⁷ = 2983763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2983801) 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, 87745 + ... + 87778.

It is an arithmetic number, because the mean of its divisors is an integer number (789858).

2^2983891 is an apocalyptic number.

2983891 is the 1093-rd centered pentagonal number.

2983891 is a deficient number, since it is larger than the sum of its proper divisors (175541).

2983891 is a wasteful number, since it uses less digits than its factorization.

2983891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175540.

The product of its digits is 31104, while the sum is 40.

The square root of 2983891 is about 1727.3942804120. The cubic root of 2983891 is about 143.9663469455.

Subtracting from 2983891 its reverse (1983892), we obtain a palindrome (999999).

It can be divided in two parts, 29838 and 91, that added together give a square (29929 = 173²).

The spelling of 2983891 in words is "two million, nine hundred eighty-three thousand, eight hundred ninety-one".