6618349 has 2 divisors, whose sum is σ = 6618350. Its totient is φ = 6618348.

The previous prime is 6618323. The next prime is 6618401. The reversal of 6618349 is 9438166.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5221225 + 1397124 = 2285^2 + 1182^2 .

It is a cyclic number.

It is not a de Polignac number, because 6618349 - 2⁹ = 6617837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6618949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3309174 + 3309175.

It is an arithmetic number, because the mean of its divisors is an integer number (3309175).

Almost surely, 2^6618349 is an apocalyptic number.

It is an amenable number.

6618349 is a deficient number, since it is larger than the sum of its proper divisors (1).

6618349 is an equidigital number, since it uses as much as digits as its factorization.

6618349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 37.

The square root of 6618349 is about 2572.6152063610. The cubic root of 6618349 is about 187.7514162102.

The spelling of 6618349 in words is "six million, six hundred eighteen thousand, three hundred forty-nine".