6654217 has 2 divisors, whose sum is σ = 6654218. Its totient is φ = 6654216.

The previous prime is 6654211. The next prime is 6654229. The reversal of 6654217 is 7124566.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6497401 + 156816 = 2549^2 + 396^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6654217 is a prime.

It is not a weakly prime, because it can be changed into another prime (6654211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3327108 + 3327109.

It is an arithmetic number, because the mean of its divisors is an integer number (3327109).

Almost surely, 2^6654217 is an apocalyptic number.

It is an amenable number.

6654217 is a deficient number, since it is larger than the sum of its proper divisors (1).

6654217 is an equidigital number, since it uses as much as digits as its factorization.

6654217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 6654217 is about 2579.5769032925. The cubic root of 6654217 is about 188.0899769241.

The spelling of 6654217 in words is "six million, six hundred fifty-four thousand, two hundred seventeen".