3686075945 has 8 divisors (see below), whose sum is σ = 4425358536. Its totient is φ = 2947482496.

The previous prime is 3686075941. The next prime is 3686075989. The reversal of 3686075945 is 5495706863.

It can be written as a sum of positive squares in 4 ways, for example, as 114340249 + 3571735696 = 10693^2 + 59764^2 .

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 3686075945 - 2² = 3686075941 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3686075941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160442 + ... + 181971.

It is an arithmetic number, because the mean of its divisors is an integer number (553169817).

Almost surely, 2^3686075945 is an apocalyptic number.

It is an amenable number.

3686075945 is a deficient number, since it is larger than the sum of its proper divisors (739282591).

3686075945 is a wasteful number, since it uses less digits than its factorization.

3686075945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344571.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The square root of 3686075945 is about 60713.0623918774. The cubic root of 3686075945 is about 1544.7377490451.

The spelling of 3686075945 in words is "three billion, six hundred eighty-six million, seventy-five thousand, nine hundred forty-five".