263273473 has 2 divisors, whose sum is σ = 263273474. Its totient is φ = 263273472.

The previous prime is 263273453. The next prime is 263273497. The reversal of 263273473 is 374372362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150234049 + 113039424 = 12257^2 + 10632^2 .

It is a cyclic number.

It is not a de Polignac number, because 263273473 - 2²⁵ = 229719041 is a prime.

It is not a weakly prime, because it can be changed into another prime (263273453) 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, 131636736 + 131636737.

It is an arithmetic number, because the mean of its divisors is an integer number (131636737).

Almost surely, 2^263273473 is an apocalyptic number.

It is an amenable number.

263273473 is a deficient number, since it is larger than the sum of its proper divisors (1).

263273473 is an equidigital number, since it uses as much as digits as its factorization.

263273473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 37.

The square root of 263273473 is about 16225.7040833364. The cubic root of 263273473 is about 640.9178505237.

The spelling of 263273473 in words is "two hundred sixty-three million, two hundred seventy-three thousand, four hundred seventy-three".