3668686 has 8 divisors (see below), whose sum is σ = 6289200. Its totient is φ = 1572288.

The previous prime is 3668671. The next prime is 3668699. The reversal of 3668686 is 6868663.

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

It is a super-3 number, since 3×3668686³ (a number of 21 digits) contains 333 as substring.

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, 131011 + ... + 131038.

It is an arithmetic number, because the mean of its divisors is an integer number (786150).

Almost surely, 2^3668686 is an apocalyptic number.

3668686 is a deficient number, since it is larger than the sum of its proper divisors (2620514).

3668686 is a wasteful number, since it uses less digits than its factorization.

3668686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262058.

The product of its digits is 248832, while the sum is 43.

The square root of 3668686 is about 1915.3814241555. The cubic root of 3668686 is about 154.2304695573.

The spelling of 3668686 in words is "three million, six hundred sixty-eight thousand, six hundred eighty-six".