3909668 has 24 divisors (see below), whose sum is σ = 8232000. Its totient is φ = 1587168.

The previous prime is 3909667. The next prime is 3909671. The reversal of 3909668 is 8669093.

It is not an unprimeable number, because it can be changed into a prime (3909667) 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, 3143 + ... + 4206.

It is an arithmetic number, because the mean of its divisors is an integer number (343000).

Almost surely, 2^3909668 is an apocalyptic number.

3909668 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3909668 is an abundant number, since it is smaller than the sum of its proper divisors (4322332).

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

3909668 is a wasteful number, since it uses less digits than its factorization.

3909668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7379 (or 7377 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 3909668 is about 1977.2880417380. The cubic root of 3909668 is about 157.5360528871.

The spelling of 3909668 in words is "three million, nine hundred nine thousand, six hundred sixty-eight".