263969297 has 2 divisors, whose sum is σ = 263969298. Its totient is φ = 263969296.

The previous prime is 263969273. The next prime is 263969317. The reversal of 263969297 is 792969362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 263867536 + 101761 = 16244^2 + 319^2 .

It is a cyclic number.

It is not a de Polignac number, because 263969297 - 2¹⁸ = 263707153 is a prime.

It is not a weakly prime, because it can be changed into another prime (263969207) 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, 131984648 + 131984649.

It is an arithmetic number, because the mean of its divisors is an integer number (131984649).

Almost surely, 2^263969297 is an apocalyptic number.

It is an amenable number.

263969297 is a deficient number, since it is larger than the sum of its proper divisors (1).

263969297 is an equidigital number, since it uses as much as digits as its factorization.

263969297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2204496, while the sum is 53.

The square root of 263969297 is about 16247.1319622880. The cubic root of 263969297 is about 641.4819961142.

The spelling of 263969297 in words is "two hundred sixty-three million, nine hundred sixty-nine thousand, two hundred ninety-seven".