7646636 has 12 divisors (see below), whose sum is σ = 13608840. Its totient is φ = 3758400.

The previous prime is 7646621. The next prime is 7646641. The reversal of 7646636 is 6366467.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7646636.

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, 15965 + ... + 16436.

It is an arithmetic number, because the mean of its divisors is an integer number (1134070).

Almost surely, 2^7646636 is an apocalyptic number.

It is an amenable number.

7646636 is a deficient number, since it is larger than the sum of its proper divisors (5962204).

7646636 is a wasteful number, since it uses less digits than its factorization.

7646636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32464 (or 32462 counting only the distinct ones).

The product of its digits is 108864, while the sum is 38.

The square root of 7646636 is about 2765.2551419354. The cubic root of 7646636 is about 197.0108474019.

The spelling of 7646636 in words is "seven million, six hundred forty-six thousand, six hundred thirty-six".