2606491 has 12 divisors (see below), whose sum is σ = 2873520. Its totient is φ = 2360960.

The previous prime is 2606489. The next prime is 2606497. The reversal of 2606491 is 1946062.

It is not a de Polignac number, because 2606491 - 2¹ = 2606489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2606497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8226 + ... + 8536.

It is an arithmetic number, because the mean of its divisors is an integer number (239460).

2^2606491 is an apocalyptic number.

2606491 is a deficient number, since it is larger than the sum of its proper divisors (267029).

2606491 is a wasteful number, since it uses less digits than its factorization.

2606491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2606491 is about 1614.4630686392. The cubic root of 2606491 is about 137.6212220231.

The spelling of 2606491 in words is "two million, six hundred six thousand, four hundred ninety-one".