2956813 has 2 divisors, whose sum is σ = 2956814. Its totient is φ = 2956812.

The previous prime is 2956783. The next prime is 2956819. The reversal of 2956813 is 3186592.

2956813 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., 2518569 + 438244 = 1587^2 + 662^2 .

It is a cyclic number.

It is not a de Polignac number, because 2956813 - 2⁹ = 2956301 is a prime.

2956813 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2956819) 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, 1478406 + 1478407.

It is an arithmetic number, because the mean of its divisors is an integer number (1478407).

2^2956813 is an apocalyptic number.

It is an amenable number.

2956813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2956813 is an equidigital number, since it uses as much as digits as its factorization.

2956813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 2956813 is about 1719.5386009043. The cubic root of 2956813 is about 143.5295378014.

The spelling of 2956813 in words is "two million, nine hundred fifty-six thousand, eight hundred thirteen".