2686606 has 16 divisors (see below), whose sum is σ = 4370688. Its totient is φ = 1231200.

The previous prime is 2686603. The next prime is 2686631. The reversal of 2686606 is 6066862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2686603) 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 7 ways as a sum of consecutive naturals, for example, 4696 + ... + 5236.

It is an arithmetic number, because the mean of its divisors is an integer number (273168).

2^2686606 is an apocalyptic number.

2686606 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2686606 is a deficient number, since it is larger than the sum of its proper divisors (1684082).

2686606 is a wasteful number, since it uses less digits than its factorization.

2686606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 2686606 is about 1639.0869409522. The cubic root of 2686606 is about 139.0170260185.

The spelling of 2686606 in words is "two million, six hundred eighty-six thousand, six hundred six".