2606489 has 2 divisors, whose sum is σ = 2606490. Its totient is φ = 2606488.

The previous prime is 2606473. The next prime is 2606497. The reversal of 2606489 is 9846062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1646089 + 960400 = 1283^2 + 980^2 .

It is a cyclic number.

It is not a de Polignac number, because 2606489 - 2⁴ = 2606473 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2606459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1303244 + 1303245.

It is an arithmetic number, because the mean of its divisors is an integer number (1303245).

2^2606489 is an apocalyptic number.

It is an amenable number.

2606489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2606489 is an equidigital number, since it uses as much as digits as its factorization.

2606489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 2606489 is about 1614.4624492381. The cubic root of 2606489 is about 137.6211868235.

The spelling of 2606489 in words is "two million, six hundred six thousand, four hundred eighty-nine".