263996441 has 2 divisors, whose sum is σ = 263996442. Its totient is φ = 263996440.

The previous prime is 263996437. The next prime is 263996477. The reversal of 263996441 is 144699362.

It is a happy number.

263996441 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., 138556441 + 125440000 = 11771^2 + 11200^2 .

It is a cyclic number.

It is not a de Polignac number, because 263996441 - 2² = 263996437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 263996392 and 263996401.

It is not a weakly prime, because it can be changed into another prime (263996741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131998220 + 131998221.

It is an arithmetic number, because the mean of its divisors is an integer number (131998221).

Almost surely, 2^263996441 is an apocalyptic number.

It is an amenable number.

263996441 is a deficient number, since it is larger than the sum of its proper divisors (1).

263996441 is an equidigital number, since it uses as much as digits as its factorization.

263996441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 44.

The square root of 263996441 is about 16247.9672882487. The cubic root of 263996441 is about 641.5039832552.

The spelling of 263996441 in words is "two hundred sixty-three million, nine hundred ninety-six thousand, four hundred forty-one".