3977108420 has 48 divisors (see below), whose sum is σ = 8636544000. Its totient is φ = 1536812160.

The previous prime is 3977108417. The next prime is 3977108431. The reversal of 3977108420 is 248017793.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366026 + ... + 376734.

It is an arithmetic number, because the mean of its divisors is an integer number (179928000).

Almost surely, 2^3977108420 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 3977108420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4318272000).

3977108420 is an abundant number, since it is smaller than the sum of its proper divisors (4659435580).

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

3977108420 is a wasteful number, since it uses less digits than its factorization.

3977108420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11348 (or 11346 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 3977108420 is about 63064.3197061540. The cubic root of 3977108420 is about 1584.3670803718.

The spelling of 3977108420 in words is "three billion, nine hundred seventy-seven million, one hundred eight thousand, four hundred twenty".