3985079936 has 16 divisors (see below), whose sum is σ = 7939026690. Its totient is φ = 1992539904.

The previous prime is 3985079897. The next prime is 3985079941. The reversal of 3985079936 is 6399705893.

It can be written as a sum of positive squares in only one way, i.e., 3809358400 + 175721536 = 61720^2 + 13256^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-3 number, since 3×3985079936³ (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 15566591 + ... + 15566846.

Almost surely, 2^3985079936 is an apocalyptic number.

It is an amenable number.

3985079936 is a deficient number, since it is larger than the sum of its proper divisors (3953946754).

3985079936 is an equidigital number, since it uses as much as digits as its factorization.

3985079936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31133451 (or 31133439 counting only the distinct ones).

The product of its (nonzero) digits is 11022480, while the sum is 59.

The square root of 3985079936 is about 63127.4895429875. The cubic root of 3985079936 is about 1585.4249158139.

The spelling of 3985079936 in words is "three billion, nine hundred eighty-five million, seventy-nine thousand, nine hundred thirty-six".