2090686 has 16 divisors (see below), whose sum is σ = 3403008. Its totient is φ = 957600.

The previous prime is 2090681. The next prime is 2090689. The reversal of 2090686 is 6860902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2090681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4756 + ... + 5176.

It is an arithmetic number, because the mean of its divisors is an integer number (212688).

2^2090686 is an apocalyptic number.

2090686 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2090686 is a deficient number, since it is larger than the sum of its proper divisors (1312322).

2090686 is a wasteful number, since it uses less digits than its factorization.

2090686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 2090686 is about 1445.9204680756. The cubic root of 2090686 is about 127.8683134604.

The spelling of 2090686 in words is "two million, ninety thousand, six hundred eighty-six".