3978654113 has 4 divisors (see below), whose sum is σ = 4547033280. Its totient is φ = 3410274948.

The previous prime is 3978654107. The next prime is 3978654133. The reversal of 3978654113 is 3114568793.

It is a happy number.

3978654113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3978654113 - 2⁸ = 3978653857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3978654133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284189573 + ... + 284189586.

It is an arithmetic number, because the mean of its divisors is an integer number (1136758320).

Almost surely, 2^3978654113 is an apocalyptic number.

It is an amenable number.

3978654113 is a deficient number, since it is larger than the sum of its proper divisors (568379167).

3978654113 is an equidigital number, since it uses as much as digits as its factorization.

3978654113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568379166.

The product of its digits is 544320, while the sum is 47.

The square root of 3978654113 is about 63076.5734088338. The cubic root of 3978654113 is about 1584.5723071896.

The spelling of 3978654113 in words is "three billion, nine hundred seventy-eight million, six hundred fifty-four thousand, one hundred thirteen".