3979049986 has 8 divisors (see below), whose sum is σ = 6095566080. Its totient is φ = 1947194628.

The previous prime is 3979049957. The next prime is 3979049993. The reversal of 3979049986 is 6899409793.

3979049986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21165066 + ... + 21165253.

It is an arithmetic number, because the mean of its divisors is an integer number (761945760).

Almost surely, 2^3979049986 is an apocalyptic number.

3979049986 is a deficient number, since it is larger than the sum of its proper divisors (2116516094).

3979049986 is a wasteful number, since it uses less digits than its factorization.

3979049986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42330368.

The product of its (nonzero) digits is 26453952, while the sum is 64.

The square root of 3979049986 is about 63079.7113658584. The cubic root of 3979049986 is about 1584.6248600187.

The spelling of 3979049986 in words is "three billion, nine hundred seventy-nine million, forty-nine thousand, nine hundred eighty-six".