263798837 has 2 divisors, whose sum is σ = 263798838. Its totient is φ = 263798836.

The previous prime is 263798813. The next prime is 263798893. The reversal of 263798837 is 738897362.

It is a happy number.

263798837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209496676 + 54302161 = 14474^2 + 7369^2 .

It is a cyclic number.

It is not a de Polignac number, because 263798837 - 2²⁰ = 262750261 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263798807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131899418 + 131899419.

It is an arithmetic number, because the mean of its divisors is an integer number (131899419).

Almost surely, 2^263798837 is an apocalyptic number.

It is an amenable number.

263798837 is a deficient number, since it is larger than the sum of its proper divisors (1).

263798837 is an equidigital number, since it uses as much as digits as its factorization.

263798837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 53.

The square root of 263798837 is about 16241.8852661875. The cubic root of 263798837 is about 641.3438859022.

The spelling of 263798837 in words is "two hundred sixty-three million, seven hundred ninety-eight thousand, eight hundred thirty-seven".