7688636 has 12 divisors (see below), whose sum is σ = 13741728. Its totient is φ = 3762432.

The previous prime is 7688627. The next prime is 7688663. The reversal of 7688636 is 6368867.

7688636 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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 in 3 ways as a sum of consecutive naturals, for example, 20261 + ... + 20636.

It is an arithmetic number, because the mean of its divisors is an integer number (1145144).

Almost surely, 2^7688636 is an apocalyptic number.

It is an amenable number.

7688636 is a deficient number, since it is larger than the sum of its proper divisors (6053092).

7688636 is a wasteful number, since it uses less digits than its factorization.

7688636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40948 (or 40946 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 7688636 is about 2772.8389783758. The cubic root of 7688636 is about 197.3708903538.

The spelling of 7688636 in words is "seven million, six hundred eighty-eight thousand, six hundred thirty-six".