263530867 has 2 divisors, whose sum is σ = 263530868. Its totient is φ = 263530866.

The previous prime is 263530853. The next prime is 263530873. The reversal of 263530867 is 768035362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 263530867 - 2¹¹ = 263528819 is a prime.

It is not a weakly prime, because it can be changed into another prime (263530847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131765433 + 131765434.

It is an arithmetic number, because the mean of its divisors is an integer number (131765434).

Almost surely, 2^263530867 is an apocalyptic number.

263530867 is a deficient number, since it is larger than the sum of its proper divisors (1).

263530867 is an equidigital number, since it uses as much as digits as its factorization.

263530867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 263530867 is about 16233.6338199431. The cubic root of 263530867 is about 641.1266507434.

The spelling of 263530867 in words is "two hundred sixty-three million, five hundred thirty thousand, eight hundred sixty-seven".