3906866979 has 16 divisors (see below), whose sum is σ = 5987536800. Its totient is φ = 2514764448.

The previous prime is 3906866959. The next prime is 3906867011. The reversal of 3906866979 is 9796686093.

It is not a de Polignac number, because 3906866979 - 2⁷ = 3906866851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3906866959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2494024 + ... + 2495589.

It is an arithmetic number, because the mean of its divisors is an integer number (374221050).

Almost surely, 2^3906866979 is an apocalyptic number.

3906866979 is a deficient number, since it is larger than the sum of its proper divisors (2080669821).

3906866979 is a wasteful number, since it uses less digits than its factorization.

3906866979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4989651 (or 4989645 counting only the distinct ones).

The product of its (nonzero) digits is 26453952, while the sum is 63.

The square root of 3906866979 is about 62504.9356371159. The cubic root of 3906866979 is about 1574.9842247853.

The spelling of 3906866979 in words is "three billion, nine hundred six million, eight hundred sixty-six thousand, nine hundred seventy-nine".