7636636 has 12 divisors (see below), whose sum is σ = 15273328. Its totient is φ = 3272832.

The previous prime is 7636627. The next prime is 7636661. The reversal of 7636636 is 6366367.

7636636 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7636595 and 7636604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136341 + ... + 136396.

Almost surely, 2^7636636 is an apocalyptic number.

It is an amenable number.

7636636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7636636 is a wasteful number, since it uses less digits than its factorization.

7636636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272748 (or 272746 counting only the distinct ones).

The product of its digits is 81648, while the sum is 37.

The square root of 7636636 is about 2763.4463989736. The cubic root of 7636636 is about 196.9249286654.

The spelling of 7636636 in words is "seven million, six hundred thirty-six thousand, six hundred thirty-six".