2297021 has 2 divisors, whose sum is σ = 2297022. Its totient is φ = 2297020.

The previous prime is 2297011. The next prime is 2297027. The reversal of 2297021 is 1207922.

2297021 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., 1792921 + 504100 = 1339^2 + 710^2 .

It is a cyclic number.

It is not a de Polignac number, because 2297021 - 2¹⁴ = 2280637 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2297027) 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, 1148510 + 1148511.

It is an arithmetic number, because the mean of its divisors is an integer number (1148511).

2^2297021 is an apocalyptic number.

It is an amenable number.

2297021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2297021 is an equidigital number, since it uses as much as digits as its factorization.

2297021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 2297021 is about 1515.5926233655. The cubic root of 2297021 is about 131.9435977276.

The spelling of 2297021 in words is "two million, two hundred ninety-seven thousand, twenty-one".