3979889793 has 24 divisors (see below), whose sum is σ = 6440843136. Its totient is φ = 2346861600.

The previous prime is 3979889779. The next prime is 3979889827.

3979889793 is a `hidden beast` number, since 397 + 98 + 89 + 79 + 3 = 666.

3979889793 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3979889793 - 2⁵ = 3979889761 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3979889723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 539593 + ... + 546918.

It is an arithmetic number, because the mean of its divisors is an integer number (268368464).

Almost surely, 2^3979889793 is an apocalyptic number.

3979889793 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3979889793 is a deficient number, since it is larger than the sum of its proper divisors (2460953343).

3979889793 is a wasteful number, since it uses less digits than its factorization.

3979889793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086565 (or 1086562 counting only the distinct ones).

The product of its digits is 185177664, while the sum is 72.

The square root of 3979889793 is about 63086.3677271088. The cubic root of 3979889793 is about 1584.7363343189.

The spelling of 3979889793 in words is "three billion, nine hundred seventy-nine million, eight hundred eighty-nine thousand, seven hundred ninety-three".