3977013852 has 108 divisors (see below), whose sum is σ = 11943378720. Its totient is φ = 1112090112.

The previous prime is 3977013827. The next prime is 3977013863. The reversal of 3977013852 is 2583107793.

It is a happy number.

3977013852 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3977013798 and 3977013807.

It is a congruent number.

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, 58924 + ... + 106892.

It is an arithmetic number, because the mean of its divisors is an integer number (110586840).

Almost surely, 2^3977013852 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 3977013852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5971689360).

3977013852 is an abundant number, since it is smaller than the sum of its proper divisors (7966364868).

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

3977013852 is a wasteful number, since it uses less digits than its factorization.

3977013852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48040 (or 48028 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 3977013852 is about 63063.5699274946. The cubic root of 3977013852 is about 1584.3545225368.

The spelling of 3977013852 in words is "three billion, nine hundred seventy-seven million, thirteen thousand, eight hundred fifty-two".