4688646 has 16 divisors (see below), whose sum is σ = 9433584. Its totient is φ = 1553504.

The previous prime is 4688641. The next prime is 4688653. The reversal of 4688646 is 6468864.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4688598 and 4688607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4688641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1221 + ... + 3296.

It is an arithmetic number, because the mean of its divisors is an integer number (589599).

Almost surely, 2^4688646 is an apocalyptic number.

4688646 is an abundant number, since it is smaller than the sum of its proper divisors (4744938).

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

4688646 is a wasteful number, since it uses less digits than its factorization.

4688646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4695.

The product of its digits is 221184, while the sum is 42.

The square root of 4688646 is about 2165.3281506506. The cubic root of 4688646 is about 167.3718749899.

The spelling of 4688646 in words is "four million, six hundred eighty-eight thousand, six hundred forty-six".