2606690 has 16 divisors (see below), whose sum is σ = 4710528. Its totient is φ = 1038576.

The previous prime is 2606683. The next prime is 2606693. The reversal of 2606690 is 966062.

It is a happy number.

2606690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2606690² = 13589665512200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2606693) 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 in 7 ways as a sum of consecutive naturals, for example, 4349 + ... + 4911.

It is an arithmetic number, because the mean of its divisors is an integer number (294408).

2^2606690 is an apocalyptic number.

2606690 is a deficient number, since it is larger than the sum of its proper divisors (2103838).

2606690 is a wasteful number, since it uses less digits than its factorization.

2606690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 2606690 is about 1614.5246978600. The cubic root of 2606690 is about 137.6247242957.

The spelling of 2606690 in words is "two million, six hundred six thousand, six hundred ninety".