3847779432 has 96 divisors (see below), whose sum is σ = 11923778880. Its totient is φ = 1098074880.

The previous prime is 3847779401. The next prime is 3847779491. The reversal of 3847779432 is 2349777483.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 476307 + ... + 484317.

It is an arithmetic number, because the mean of its divisors is an integer number (124206030).

Almost surely, 2^3847779432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3847779432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5961889440).

3847779432 is an abundant number, since it is smaller than the sum of its proper divisors (8075999448).

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

3847779432 is a wasteful number, since it uses less digits than its factorization.

3847779432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8983 (or 8976 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 54.

The square root of 3847779432 is about 62030.4718021716. The cubic root of 3847779432 is about 1567.0038239405.

The spelling of 3847779432 in words is "three billion, eight hundred forty-seven million, seven hundred seventy-nine thousand, four hundred thirty-two".