4688645 has 16 divisors (see below), whose sum is σ = 6178032. Its totient is φ = 3394560.

The previous prime is 4688641. The next prime is 4688653. The reversal of 4688645 is 5468864.

It can be written as a sum of positive squares in 8 ways, for example, as 498436 + 4190209 = 706^2 + 2047^2 .

It is not a de Polignac number, because 4688645 - 2² = 4688641 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 2765 + ... + 4125.

It is an arithmetic number, because the mean of its divisors is an integer number (386127).

Almost surely, 2^4688645 is an apocalyptic number.

It is an amenable number.

4688645 is a deficient number, since it is larger than the sum of its proper divisors (1489387).

4688645 is a wasteful number, since it uses less digits than its factorization.

4688645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432.

The product of its digits is 184320, while the sum is 41.

The square root of 4688645 is about 2165.3279197387. The cubic root of 4688645 is about 167.3718630908.

The spelling of 4688645 in words is "four million, six hundred eighty-eight thousand, six hundred forty-five".