663349 has 2 divisors, whose sum is σ = 663350. Its totient is φ = 663348.

The previous prime is 663331. The next prime is 663359. The reversal of 663349 is 943366.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 651249 + 12100 = 807^2 + 110^2 .

It is a cyclic number.

It is not a de Polignac number, because 663349 - 2¹³ = 655157 is a prime.

It is a d-powerful number, because it can be written as 6 + 6⁶ + 3³ + 3⁹ + 4⁸ + 9⁶ .

It is a self number, because there is not a number n which added to its sum of digits gives 663349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331674 + 331675.

It is an arithmetic number, because the mean of its divisors is an integer number (331675).

2⁶⁶³³⁴⁹ is an apocalyptic number.

It is an amenable number.

663349 is a deficient number, since it is larger than the sum of its proper divisors (1).

663349 is an equidigital number, since it uses as much as digits as its factorization.

663349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 31.

The square root of 663349 is about 814.4623993777. The cubic root of 663349 is about 87.2128929818.

The spelling of 663349 in words is "six hundred sixty-three thousand, three hundred forty-nine".