4561685 has 4 divisors (see below), whose sum is σ = 5474028. Its totient is φ = 3649344.

The previous prime is 4561663. The next prime is 4561723. The reversal of 4561685 is 5861654.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 790321 + 3771364 = 889^2 + 1942^2 .

It is a cyclic number.

It is not a de Polignac number, because 4561685 - 2⁶ = 4561621 is a prime.

It is a Duffinian number.

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, 456164 + ... + 456173.

It is an arithmetic number, because the mean of its divisors is an integer number (1368507).

Almost surely, 2^4561685 is an apocalyptic number.

It is an amenable number.

4561685 is a deficient number, since it is larger than the sum of its proper divisors (912343).

4561685 is an equidigital number, since it uses as much as digits as its factorization.

4561685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912342.

The product of its digits is 28800, while the sum is 35.

The square root of 4561685 is about 2135.8101507391. The cubic root of 4561685 is about 165.8473096363.

The spelling of 4561685 in words is "four million, five hundred sixty-one thousand, six hundred eighty-five".