3668219 has 4 divisors (see below), whose sum is σ = 3704640. Its totient is φ = 3631800.

The previous prime is 3668213. The next prime is 3668221. The reversal of 3668219 is 9128663.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3668219 is a prime.

It is a super-2 number, since 2×3668219² = 26911661263922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3668213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18059 + ... + 18260.

It is an arithmetic number, because the mean of its divisors is an integer number (926160).

Almost surely, 2^3668219 is an apocalyptic number.

3668219 is a deficient number, since it is larger than the sum of its proper divisors (36421).

3668219 is a wasteful number, since it uses less digits than its factorization.

3668219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36420.

The product of its digits is 15552, while the sum is 35.

The square root of 3668219 is about 1915.2595124421. The cubic root of 3668219 is about 154.2239250992.

The spelling of 3668219 in words is "three million, six hundred sixty-eight thousand, two hundred nineteen".