3985779306 has 64 divisors (see below), whose sum is σ = 8444215296. Its totient is φ = 1252238400.

The previous prime is 3985779257. The next prime is 3985779311. The reversal of 3985779306 is 6039775893.

3985779306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3985779306² = 31772873352275683272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4854376 + ... + 4855196.

It is an arithmetic number, because the mean of its divisors is an integer number (131940864).

Almost surely, 2^3985779306 is an apocalyptic number.

3985779306 is an abundant number, since it is smaller than the sum of its proper divisors (4458435990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3985779306 is a wasteful number, since it uses less digits than its factorization.

3985779306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507.

The product of its (nonzero) digits is 8573040, while the sum is 57.

The square root of 3985779306 is about 63133.0286458681. The cubic root of 3985779306 is about 1585.5176562176.

The spelling of 3985779306 in words is "three billion, nine hundred eighty-five million, seven hundred seventy-nine thousand, three hundred six".