2099686 has 4 divisors (see below), whose sum is σ = 3149532. Its totient is φ = 1049842.

The previous prime is 2099677. The next prime is 2099707. The reversal of 2099686 is 6869902.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 524920 + ... + 524923.

It is an arithmetic number, because the mean of its divisors is an integer number (787383).

2^2099686 is an apocalyptic number.

2099686 is a deficient number, since it is larger than the sum of its proper divisors (1049846).

2099686 is a wasteful number, since it uses less digits than its factorization.

2099686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049845.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 2099686 is about 1449.0293302760. The cubic root of 2099686 is about 128.0515336114.

The spelling of 2099686 in words is "two million, ninety-nine thousand, six hundred eighty-six".