3985956201 has 16 divisors (see below), whose sum is σ = 5339892096. Its totient is φ = 2644682496.

The previous prime is 3985956179. The next prime is 3985956203. The reversal of 3985956201 is 1026595893.

It is a happy number.

It is not a de Polignac number, because 3985956201 - 2¹⁹ = 3985431913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3985956203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1223691 + ... + 1226943.

It is an arithmetic number, because the mean of its divisors is an integer number (333743256).

Almost surely, 2^3985956201 is an apocalyptic number.

It is an amenable number.

3985956201 is a deficient number, since it is larger than the sum of its proper divisors (1353935895).

3985956201 is a wasteful number, since it uses less digits than its factorization.

3985956201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5072.

The product of its (nonzero) digits is 583200, while the sum is 48.

The square root of 3985956201 is about 63134.4296006545. The cubic root of 3985956201 is about 1585.5411117725.

The spelling of 3985956201 in words is "three billion, nine hundred eighty-five million, nine hundred fifty-six thousand, two hundred one".