2938813 has 2 divisors, whose sum is σ = 2938814. Its totient is φ = 2938812.

The previous prime is 2938801. The next prime is 2938843. The reversal of 2938813 is 3188392.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2913849 + 24964 = 1707^2 + 158^2 .

It is a cyclic number.

It is not a de Polignac number, because 2938813 - 2⁹ = 2938301 is a prime.

It is an Ulam number.

2938813 is a lucky number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2938843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1469406 + 1469407.

It is an arithmetic number, because the mean of its divisors is an integer number (1469407).

2^2938813 is an apocalyptic number.

It is an amenable number.

2938813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2938813 is an equidigital number, since it uses as much as digits as its factorization.

2938813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 2938813 is about 1714.2966487747. The cubic root of 2938813 is about 143.2376929427.

The spelling of 2938813 in words is "two million, nine hundred thirty-eight thousand, eight hundred thirteen".