3688669 has 8 divisors (see below), whose sum is σ = 3813920. Its totient is φ = 3565296.

The previous prime is 3688667. The next prime is 3688681. The reversal of 3688669 is 9668863.

It is a happy number.

3688669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 3688669 - 2¹ = 3688667 is a prime.

It is a super-2 number, since 2×3688669² = 27212557983122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3688661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4294 + ... + 5080.

It is an arithmetic number, because the mean of its divisors is an integer number (476740).

Almost surely, 2^3688669 is an apocalyptic number.

It is an amenable number.

3688669 is a deficient number, since it is larger than the sum of its proper divisors (125251).

3688669 is a wasteful number, since it uses less digits than its factorization.

3688669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939.

The product of its digits is 373248, while the sum is 46.

The square root of 3688669 is about 1920.5907945213. The cubic root of 3688669 is about 154.5099891252.

The spelling of 3688669 in words is "three million, six hundred eighty-eight thousand, six hundred sixty-nine".