3977668332 has 108 divisors (see below), whose sum is σ = 11075697360. Its totient is φ = 1202752320.

The previous prime is 3977668301. The next prime is 3977668351. The reversal of 3977668332 is 2338667793.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3235894 + ... + 3237122.

Almost surely, 2^3977668332 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 3977668332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5537848680).

3977668332 is an abundant number, since it is smaller than the sum of its proper divisors (7098029028).

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

3977668332 is a wasteful number, since it uses less digits than its factorization.

3977668332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004 (or 1988 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 54.

The square root of 3977668332 is about 63068.7587637493. The cubic root of 3977668332 is about 1584.4414278977.

The spelling of 3977668332 in words is "three billion, nine hundred seventy-seven million, six hundred sixty-eight thousand, three hundred thirty-two".