3688843 has 4 divisors (see below), whose sum is σ = 3693448. Its totient is φ = 3684240.

The previous prime is 3688837. The next prime is 3688849. The reversal of 3688843 is 3488863.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3488863 = 7 ⋅498409.

It is an interprime number because it is at equal distance from previous prime (3688837) and next prime (3688849).

It is a cyclic number.

It is not a de Polignac number, because 3688843 - 2⁹ = 3688331 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3688796 and 3688805.

It is not an unprimeable number, because it can be changed into a prime (3688849) 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, 753 + ... + 2818.

It is an arithmetic number, because the mean of its divisors is an integer number (923362).

Almost surely, 2^3688843 is an apocalyptic number.

3688843 is a deficient number, since it is larger than the sum of its proper divisors (4605).

3688843 is a wasteful number, since it uses less digits than its factorization.

3688843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4604.

The product of its digits is 110592, while the sum is 40.

The square root of 3688843 is about 1920.6360925485. The cubic root of 3688843 is about 154.5124185757.

The spelling of 3688843 in words is "three million, six hundred eighty-eight thousand, eight hundred forty-three".