2938021 has 2 divisors, whose sum is σ = 2938022. Its totient is φ = 2938020.

The previous prime is 2938009. The next prime is 2938037. The reversal of 2938021 is 1208392.

2938021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2937796 + 225 = 1714^2 + 15^2 .

It is a cyclic number.

It is not a de Polignac number, because 2938021 - 2⁹ = 2937509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2938081) 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, 1469010 + 1469011.

It is an arithmetic number, because the mean of its divisors is an integer number (1469011).

2^2938021 is an apocalyptic number.

It is an amenable number.

2938021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2938021 is an equidigital number, since it uses as much as digits as its factorization.

2938021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2938021 is about 1714.0656346826. The cubic root of 2938021 is about 143.2248244314.

The spelling of 2938021 in words is "two million, nine hundred thirty-eight thousand, twenty-one".