3903808 has 28 divisors (see below), whose sum is σ = 7812532. Its totient is φ = 1935360.

The previous prime is 3903787. The next prime is 3903839. The reversal of 3903808 is 8083093.

It can be written as a sum of positive squares in 2 ways, for example, as 399424 + 3504384 = 632^2 + 1872^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3903808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11416 + ... + 11752.

It is an arithmetic number, because the mean of its divisors is an integer number (279019).

Almost surely, 2^3903808 is an apocalyptic number.

It is an amenable number.

3903808 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

3903808 is a wasteful number, since it uses less digits than its factorization.

3903808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 3903808 is about 1975.8056584594. The cubic root of 3903808 is about 157.4573059721.

The spelling of 3903808 in words is "three million, nine hundred three thousand, eight hundred eight".