3668641 has 8 divisors (see below), whose sum is σ = 3754944. Its totient is φ = 3583440.

The previous prime is 3668629. The next prime is 3668647. The reversal of 3668641 is 1468663.

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 3668641 - 2⁹ = 3668129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3668597 and 3668606.

It is not an unprimeable number, because it can be changed into a prime (3668647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11415 + ... + 11731.

It is an arithmetic number, because the mean of its divisors is an integer number (469368).

Almost surely, 2^3668641 is an apocalyptic number.

It is an amenable number.

3668641 is a deficient number, since it is larger than the sum of its proper divisors (86303).

3668641 is a wasteful number, since it uses less digits than its factorization.

3668641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551.

The product of its digits is 20736, while the sum is 34.

The square root of 3668641 is about 1915.3696771120. The cubic root of 3668641 is about 154.2298389592.

The spelling of 3668641 in words is "three million, six hundred sixty-eight thousand, six hundred forty-one".