3651218 has 8 divisors (see below), whose sum is σ = 5490048. Its totient is φ = 1821204.

The previous prime is 3651217. The next prime is 3651239. The reversal of 3651218 is 8121563.

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

It is not an unprimeable number, because it can be changed into a prime (3651217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1046 + ... + 2897.

It is an arithmetic number, because the mean of its divisors is an integer number (686256).

Almost surely, 2^3651218 is an apocalyptic number.

3651218 is a deficient number, since it is larger than the sum of its proper divisors (1838830).

3651218 is a wasteful number, since it uses less digits than its factorization.

3651218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4408.

The product of its digits is 1440, while the sum is 26.

The square root of 3651218 is about 1910.8160560347. The cubic root of 3651218 is about 153.9852968478.

The spelling of 3651218 in words is "three million, six hundred fifty-one thousand, two hundred eighteen".