2086911 has 16 divisors (see below), whose sum is σ = 3176800. Its totient is φ = 1353024.

The previous prime is 2086907. The next prime is 2086933. The reversal of 2086911 is 1196802.

It is not a de Polignac number, because 2086911 - 2² = 2086907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2086901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46 + ... + 2043.

It is an arithmetic number, because the mean of its divisors is an integer number (198550).

2^2086911 is an apocalyptic number.

2086911 is a deficient number, since it is larger than the sum of its proper divisors (1089889).

2086911 is a wasteful number, since it uses less digits than its factorization.

2086911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135 (or 2129 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 2086911 is about 1444.6144814448. The cubic root of 2086911 is about 127.7913062481.

The spelling of 2086911 in words is "two million, eighty-six thousand, nine hundred eleven".