3979928764 has 36 divisors (see below), whose sum is σ = 8132003040. Its totient is φ = 1699367040.

The previous prime is 3979928741. The next prime is 3979928801. The reversal of 3979928764 is 4678299793.

It is a junction number, because it is equal to n+sod(n) for n = 3979928696 and 3979928705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15652 + ... + 90580.

Almost surely, 2^3979928764 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 3979928764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4066001520).

3979928764 is an abundant number, since it is smaller than the sum of its proper divisors (4152074276).

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

3979928764 is a wasteful number, since it uses less digits than its factorization.

3979928764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75218 (or 75209 counting only the distinct ones).

The product of its digits is 41150592, while the sum is 64.

The square root of 3979928764 is about 63086.6765965683. The cubic root of 3979928764 is about 1584.7415068707.

The spelling of 3979928764 in words is "three billion, nine hundred seventy-nine million, nine hundred twenty-eight thousand, seven hundred sixty-four".