2684636 has 6 divisors (see below), whose sum is σ = 4698120. Its totient is φ = 1342316.

The previous prime is 2684611. The next prime is 2684641. The reversal of 2684636 is 6364862.

It is a junction number, because it is equal to n+sod(n) for n = 2684596 and 2684605.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 335576 + ... + 335583.

It is an arithmetic number, because the mean of its divisors is an integer number (783020).

2^2684636 is an apocalyptic number.

It is an amenable number.

2684636 is a deficient number, since it is larger than the sum of its proper divisors (2013484).

2684636 is a wasteful number, since it uses less digits than its factorization.

2684636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671163 (or 671161 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 2684636 is about 1638.4858864208. The cubic root of 2684636 is about 138.9830388358.

The spelling of 2684636 in words is "two million, six hundred eighty-four thousand, six hundred thirty-six".