663263 has 2 divisors, whose sum is σ = 663264. Its totient is φ = 663262.

The previous prime is 663241. The next prime is 663269. The reversal of 663263 is 362366.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 663263 - 2⁸ = 663007 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663269) 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 as a sum of consecutive naturals, namely, 331631 + 331632.

It is an arithmetic number, because the mean of its divisors is an integer number (331632).

2⁶⁶³²⁶³ is an apocalyptic number.

663263 is a deficient number, since it is larger than the sum of its proper divisors (1).

663263 is an equidigital number, since it uses as much as digits as its factorization.

663263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 26.

The square root of 663263 is about 814.4096021045. The cubic root of 663263 is about 87.2091239085.

The spelling of 663263 in words is "six hundred sixty-three thousand, two hundred sixty-three".