3813668 has 12 divisors (see below), whose sum is σ = 6800220. Its totient is φ = 1870752.

The previous prime is 3813647. The next prime is 3813673. The reversal of 3813668 is 8663183.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2849344 + 964324 = 1688^2 + 982^2 .

It is a super-2 number, since 2×3813668² = 29088127228448, which contains 22 as substring.

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, 8783 + ... + 9206.

It is an arithmetic number, because the mean of its divisors is an integer number (566685).

Almost surely, 2^3813668 is an apocalyptic number.

It is an amenable number.

3813668 is a deficient number, since it is larger than the sum of its proper divisors (2986552).

3813668 is a wasteful number, since it uses less digits than its factorization.

3813668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18046 (or 18044 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 3813668 is about 1952.8614902240. The cubic root of 3813668 is about 156.2359458292.

The spelling of 3813668 in words is "three million, eight hundred thirteen thousand, six hundred sixty-eight".