2921173 has 2 divisors, whose sum is σ = 2921174. Its totient is φ = 2921172.

The previous prime is 2921147. The next prime is 2921179. The reversal of 2921173 is 3711292.

2921173 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., 2582449 + 338724 = 1607^2 + 582^2 .

It is a cyclic number.

It is not a de Polignac number, because 2921173 - 2¹⁷ = 2790101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2921179) 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, 1460586 + 1460587.

It is an arithmetic number, because the mean of its divisors is an integer number (1460587).

2^2921173 is an apocalyptic number.

It is an amenable number.

2921173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2921173 is an equidigital number, since it uses as much as digits as its factorization.

2921173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 25.

The square root of 2921173 is about 1709.1439377653. The cubic root of 2921173 is about 142.9505265146.

The spelling of 2921173 in words is "two million, nine hundred twenty-one thousand, one hundred seventy-three".