4686644 has 6 divisors (see below), whose sum is σ = 8201634. Its totient is φ = 2343320.

The previous prime is 4686637. The next prime is 4686653. The reversal of 4686644 is 4466864.

It can be written as a sum of positive squares in only one way, i.e., 4571044 + 115600 = 2138^2 + 340^2 .

It is a super-3 number, since 3×4686644³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4686598 and 4686607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585827 + ... + 585834.

It is an arithmetic number, because the mean of its divisors is an integer number (1366939).

Almost surely, 2^4686644 is an apocalyptic number.

It is an amenable number.

4686644 is a deficient number, since it is larger than the sum of its proper divisors (3514990).

4686644 is a wasteful number, since it uses less digits than its factorization.

4686644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171665 (or 1171663 counting only the distinct ones).

The product of its digits is 110592, while the sum is 38.

The square root of 4686644 is about 2164.8658157031. The cubic root of 4686644 is about 167.3480496185.

The spelling of 4686644 in words is "four million, six hundred eighty-six thousand, six hundred forty-four".