2890813 has 2 divisors, whose sum is σ = 2890814. Its totient is φ = 2890812.

The previous prime is 2890763. The next prime is 2890861. The reversal of 2890813 is 3180982.

2890813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2732409 + 158404 = 1653^2 + 398^2 .

It is a cyclic number.

It is not a de Polignac number, because 2890813 - 2⁹ = 2890301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2890883) 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 as a sum of consecutive naturals, namely, 1445406 + 1445407.

It is an arithmetic number, because the mean of its divisors is an integer number (1445407).

2^2890813 is an apocalyptic number.

It is an amenable number.

2890813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2890813 is an equidigital number, since it uses as much as digits as its factorization.

2890813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 2890813 is about 1700.2391008326. The cubic root of 2890813 is about 142.4535685394.

The spelling of 2890813 in words is "two million, eight hundred ninety thousand, eight hundred thirteen".