2099688 has 32 divisors (see below), whose sum is σ = 5313600. Its totient is φ = 691328.

The previous prime is 2099677. The next prime is 2099707. The reversal of 2099688 is 8869902.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1645 + ... + 2627.

It is an arithmetic number, because the mean of its divisors is an integer number (166050).

2^2099688 is an apocalyptic number.

It is an amenable number.

2099688 is an abundant number, since it is smaller than the sum of its proper divisors (3213912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2099688 is a wasteful number, since it uses less digits than its factorization.

2099688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081 (or 1077 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 2099688 is about 1449.0300203930. The cubic root of 2099688 is about 128.0515742688.

The spelling of 2099688 in words is "two million, ninety-nine thousand, six hundred eighty-eight".