3969807868 has 24 divisors (see below), whose sum is σ = 7493295600. Its totient is φ = 1829345280.

The previous prime is 3969807847. The next prime is 3969807869. The reversal of 3969807868 is 8687089693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3969807869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26218 + ... + 92881.

It is an arithmetic number, because the mean of its divisors is an integer number (312220650).

Almost surely, 2^3969807868 is an apocalyptic number.

It is an amenable number.

3969807868 is a deficient number, since it is larger than the sum of its proper divisors (3523487732).

3969807868 is a wasteful number, since it uses less digits than its factorization.

3969807868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119757 (or 119755 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 64.

The square root of 3969807868 is about 63006.4113245628. The cubic root of 3969807868 is about 1583.3970423660.

The spelling of 3969807868 in words is "three billion, nine hundred sixty-nine million, eight hundred seven thousand, eight hundred sixty-eight".