2909573 has 2 divisors, whose sum is σ = 2909574. Its totient is φ = 2909572.

The previous prime is 2909563. The next prime is 2909581. The reversal of 2909573 is 3759092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2896804 + 12769 = 1702^2 + 113^2 .

It is a cyclic number.

It is not a de Polignac number, because 2909573 - 2¹² = 2905477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2909513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1454786 + 1454787.

It is an arithmetic number, because the mean of its divisors is an integer number (1454787).

2^2909573 is an apocalyptic number.

It is an amenable number.

2909573 is a deficient number, since it is larger than the sum of its proper divisors (1).

2909573 is an equidigital number, since it uses as much as digits as its factorization.

2909573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 2909573 is about 1705.7470504152. The cubic root of 2909573 is about 142.7610562909.

The spelling of 2909573 in words is "two million, nine hundred nine thousand, five hundred seventy-three".