263723 has 2 divisors, whose sum is σ = 263724. Its totient is φ = 263722.

The previous prime is 263677. The next prime is 263729. The reversal of 263723 is 327362.

263723 is nontrivially palindromic in base 6.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 263723 - 2¹² = 259627 is a prime.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 2¹³ + 6 + 7⁶ + 3⁵ + 2¹⁷ + 3⁸ .

It is not a weakly prime, because it can be changed into another prime (263729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131861 + 131862.

It is an arithmetic number, because the mean of its divisors is an integer number (131862).

2²⁶³⁷²³ is an apocalyptic number.

263723 is a deficient number, since it is larger than the sum of its proper divisors (1).

263723 is an equidigital number, since it uses as much as digits as its factorization.

263723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 23.

The square root of 263723 is about 513.5396771429. The cubic root of 263723 is about 64.1282422076.

The spelling of 263723 in words is "two hundred sixty-three thousand, seven hundred twenty-three".