2891011 has 2 divisors, whose sum is σ = 2891012. Its totient is φ = 2891010.

The previous prime is 2890999. The next prime is 2891023. The reversal of 2891011 is 1101982.

It is a balanced prime because it is at equal distance from previous prime (2890999) and next prime (2891023).

It is a cyclic number.

It is not a de Polignac number, because 2891011 - 2⁷ = 2890883 is a prime.

2891011 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2891041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445505 + 1445506.

It is an arithmetic number, because the mean of its divisors is an integer number (1445506).

2^2891011 is an apocalyptic number.

2891011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2891011 is an equidigital number, since it uses as much as digits as its factorization.

2891011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 2891011 is about 1700.2973269402. The cubic root of 2891011 is about 142.4568208151.

Adding to 2891011 its reverse (1101982), we get a palindrome (3992993).

The spelling of 2891011 in words is "two million, eight hundred ninety-one thousand, eleven".