2982991 has 4 divisors (see below), whose sum is σ = 3254184. Its totient is φ = 2711800.

The previous prime is 2982979. The next prime is 2982997. The reversal of 2982991 is 1992892.

2982991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2982991 - 2¹³ = 2974799 is a prime.

It is a Duffinian number.

2982991 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2982997) 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 3 ways as a sum of consecutive naturals, for example, 135580 + ... + 135601.

It is an arithmetic number, because the mean of its divisors is an integer number (813546).

2^2982991 is an apocalyptic number.

2982991 is a deficient number, since it is larger than the sum of its proper divisors (271193).

2982991 is a wasteful number, since it uses less digits than its factorization.

2982991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271192.

The product of its digits is 23328, while the sum is 40.

The square root of 2982991 is about 1727.1337527823. The cubic root of 2982991 is about 143.9518711328.

Subtracting from 2982991 its reverse (1992892), we obtain a palindrome (990099).

The spelling of 2982991 in words is "two million, nine hundred eighty-two thousand, nine hundred ninety-one".