663269 has 2 divisors, whose sum is σ = 663270. Its totient is φ = 663268.

The previous prime is 663263. The next prime is 663281. The reversal of 663269 is 962366.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 448900 + 214369 = 670^2 + 463^2 .

It is a cyclic number.

It is not a de Polignac number, because 663269 - 2¹² = 659173 is a prime.

It is a super-2 number, since 2×663269² = 879851532722, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 663269.

It is not a weakly prime, because it can be changed into another prime (663263) 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, 331634 + 331635.

It is an arithmetic number, because the mean of its divisors is an integer number (331635).

2⁶⁶³²⁶⁹ is an apocalyptic number.

It is an amenable number.

663269 is a deficient number, since it is larger than the sum of its proper divisors (1).

663269 is an equidigital number, since it uses as much as digits as its factorization.

663269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 32.

The square root of 663269 is about 814.4132857462. The cubic root of 663269 is about 87.2093868777.

The spelling of 663269 in words is "six hundred sixty-three thousand, two hundred sixty-nine".