263388023 has 2 divisors, whose sum is σ = 263388024. Its totient is φ = 263388022.

The previous prime is 263388017. The next prime is 263388031. The reversal of 263388023 is 320883362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 263388023 - 2⁴ = 263388007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263388043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131694011 + 131694012.

It is an arithmetic number, because the mean of its divisors is an integer number (131694012).

Almost surely, 2^263388023 is an apocalyptic number.

263388023 is a deficient number, since it is larger than the sum of its proper divisors (1).

263388023 is an equidigital number, since it uses as much as digits as its factorization.

263388023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 263388023 is about 16229.2335925021. The cubic root of 263388023 is about 641.0107912640.

The spelling of 263388023 in words is "two hundred sixty-three million, three hundred eighty-eight thousand, twenty-three".