3979963998 has 40 divisors (see below), whose sum is σ = 8925365592. Its totient is φ = 1325569104.

The previous prime is 3979963997. The next prime is 3979964017. The reversal of 3979963998 is 8993699793.

3979963998 is a `hidden beast` number, since 397 + 99 + 63 + 9 + 98 = 666.

It is a super-2 number, since 2×3979963998² = 31680226850752288008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3979963997) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 202336 + ... + 221132.

Almost surely, 2^3979963998 is an apocalyptic number.

3979963998 is an abundant number, since it is smaller than the sum of its proper divisors (4945401594).

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

3979963998 is a wasteful number, since it uses less digits than its factorization.

3979963998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20118 (or 20109 counting only the distinct ones).

The product of its digits is 178564176, while the sum is 72.

The square root of 3979963998 is about 63086.9558466725. The cubic root of 3979963998 is about 1584.7461833880.

The spelling of 3979963998 in words is "three billion, nine hundred seventy-nine million, nine hundred sixty-three thousand, nine hundred ninety-eight".