2981089 has 2 divisors, whose sum is σ = 2981090. Its totient is φ = 2981088.

The previous prime is 2981087. The next prime is 2981123. The reversal of 2981089 is 9801892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2739025 + 242064 = 1655^2 + 492^2 .

It is a cyclic number.

It is not a de Polignac number, because 2981089 - 2¹ = 2981087 is a prime.

Together with 2981087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2981087) 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 as a sum of consecutive naturals, namely, 1490544 + 1490545.

It is an arithmetic number, because the mean of its divisors is an integer number (1490545).

2^2981089 is an apocalyptic number.

It is an amenable number.

2981089 is a deficient number, since it is larger than the sum of its proper divisors (1).

2981089 is an equidigital number, since it uses as much as digits as its factorization.

2981089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 2981089 is about 1726.5830417330. The cubic root of 2981089 is about 143.9212693340.

It can be divided in two parts, 29 and 81089, that added together give a palindrome (81118).

The spelling of 2981089 in words is "two million, nine hundred eighty-one thousand, eighty-nine".