3688838 has 8 divisors (see below), whose sum is σ = 5555088. Its totient is φ = 1837144.

The previous prime is 3688837. The next prime is 3688849. The reversal of 3688838 is 8388863.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3688837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2981 + ... + 4032.

It is an arithmetic number, because the mean of its divisors is an integer number (694386).

Almost surely, 2^3688838 is an apocalyptic number.

3688838 is a deficient number, since it is larger than the sum of its proper divisors (1866250).

3688838 is a wasteful number, since it uses less digits than its factorization.

3688838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7278.

The product of its digits is 221184, while the sum is 44.

The square root of 3688838 is about 1920.6347908960. The cubic root of 3688838 is about 154.5123487649.

The spelling of 3688838 in words is "three million, six hundred eighty-eight thousand, eight hundred thirty-eight".