3908969988 has 48 divisors (see below), whose sum is σ = 11371551744. Its totient is φ = 1015316640.

The previous prime is 3908969951. The next prime is 3908969989. The reversal of 3908969988 is 8899698093.

It is not an unprimeable number, because it can be changed into a prime (3908969989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2114320 + ... + 2116167.

It is an arithmetic number, because the mean of its divisors is an integer number (236907328).

Almost surely, 2^3908969988 is an apocalyptic number.

It is an amenable number.

3908969988 is an abundant number, since it is smaller than the sum of its proper divisors (7462581756).

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

3908969988 is a wasteful number, since it uses less digits than its factorization.

3908969988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4230512 (or 4230510 counting only the distinct ones).

The product of its (nonzero) digits is 60466176, while the sum is 69.

The square root of 3908969988 is about 62521.7561173709. The cubic root of 3908969988 is about 1575.2667710379.

The spelling of 3908969988 in words is "three billion, nine hundred eight million, nine hundred sixty-nine thousand, nine hundred eighty-eight".