3686345 has 8 divisors (see below), whose sum is σ = 4763976. Its totient is φ = 2722176.

The previous prime is 3686341. The next prime is 3686357. The reversal of 3686345 is 5436863.

It can be written as a sum of positive squares in 4 ways, for example, as 163216 + 3523129 = 404^2 + 1877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3686345 - 2² = 3686341 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3686341) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28292 + ... + 28421.

It is an arithmetic number, because the mean of its divisors is an integer number (595497).

Almost surely, 2^3686345 is an apocalyptic number.

It is an amenable number.

3686345 is a deficient number, since it is larger than the sum of its proper divisors (1077631).

3686345 is a wasteful number, since it uses less digits than its factorization.

3686345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56731.

The product of its digits is 51840, while the sum is 35.

The square root of 3686345 is about 1919.9856770299. The cubic root of 3686345 is about 154.4775332762.

The spelling of 3686345 in words is "three million, six hundred eighty-six thousand, three hundred forty-five".