2099684 has 6 divisors (see below), whose sum is σ = 3674454. Its totient is φ = 1049840.

The previous prime is 2099677. The next prime is 2099707. The reversal of 2099684 is 4869902.

It can be written as a sum of positive squares in only one way, i.e., 1876900 + 222784 = 1370^2 + 472^2 .

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 as a sum of consecutive naturals, namely, 262457 + ... + 262464.

It is an arithmetic number, because the mean of its divisors is an integer number (612409).

2^2099684 is an apocalyptic number.

It is an amenable number.

2099684 is a deficient number, since it is larger than the sum of its proper divisors (1574770).

2099684 is a wasteful number, since it uses less digits than its factorization.

2099684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524925 (or 524923 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 2099684 is about 1449.0286401586. The cubic root of 2099684 is about 128.0514929541.

The spelling of 2099684 in words is "two million, ninety-nine thousand, six hundred eighty-four".