3673205985 has 16 divisors (see below), whose sum is σ = 6013808064. Its totient is φ = 1913483712.

The previous prime is 3673205981. The next prime is 3673206001. The reversal of 3673205985 is 5895023763.

It is a happy number.

It is not a de Polignac number, because 3673205985 - 2² = 3673205981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3673205981) 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 15 ways as a sum of consecutive naturals, for example, 2846802 + ... + 2848091.

It is an arithmetic number, because the mean of its divisors is an integer number (375863004).

Almost surely, 2^3673205985 is an apocalyptic number.

It is an amenable number.

3673205985 is a deficient number, since it is larger than the sum of its proper divisors (2340602079).

3673205985 is a wasteful number, since it uses less digits than its factorization.

3673205985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5694944.

The product of its (nonzero) digits is 1360800, while the sum is 48.

The square root of 3673205985 is about 60606.9796723117. The cubic root of 3673205985 is about 1542.9378317160.

The spelling of 3673205985 in words is "three billion, six hundred seventy-three million, two hundred five thousand, nine hundred eighty-five".