2086690 has 16 divisors (see below), whose sum is σ = 3810240. Its totient is φ = 822640.

The previous prime is 2086681. The next prime is 2086697. The reversal of 2086690 is 966802.

It is a super-2 number, since 2×2086690² = 8708550312200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2086697) 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, 760 + ... + 2179.

It is an arithmetic number, because the mean of its divisors is an integer number (238140).

2^2086690 is an apocalyptic number.

2086690 is a deficient number, since it is larger than the sum of its proper divisors (1723550).

2086690 is a wasteful number, since it uses less digits than its factorization.

2086690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017.

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

The square root of 2086690 is about 1444.5379884240. The cubic root of 2086690 is about 127.7867951348.

The spelling of 2086690 in words is "two million, eighty-six thousand, six hundred ninety".