3667217 has 4 divisors (see below), whose sum is σ = 3671076. Its totient is φ = 3663360.

The previous prime is 3667201. The next prime is 3667219. The reversal of 3667217 is 7127663.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3041536 + 625681 = 1744^2 + 791^2 .

It is a cyclic number.

It is not a de Polignac number, because 3667217 - 2⁴ = 3667201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3667219) 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, 617 + ... + 2777.

It is an arithmetic number, because the mean of its divisors is an integer number (917769).

Almost surely, 2^3667217 is an apocalyptic number.

It is an amenable number.

3667217 is a deficient number, since it is larger than the sum of its proper divisors (3859).

3667217 is a wasteful number, since it uses less digits than its factorization.

3667217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3858.

The product of its digits is 10584, while the sum is 32.

The square root of 3667217 is about 1914.9979112260. The cubic root of 3667217 is about 154.2098813680.

The spelling of 3667217 in words is "three million, six hundred sixty-seven thousand, two hundred seventeen".