263883497 has 2 divisors, whose sum is σ = 263883498. Its totient is φ = 263883496.

The previous prime is 263883493. The next prime is 263883511. The reversal of 263883497 is 794388362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138980521 + 124902976 = 11789^2 + 11176^2 .

It is a cyclic number.

It is not a de Polignac number, because 263883497 - 2² = 263883493 is a prime.

It is not a weakly prime, because it can be changed into another prime (263883491) 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, 131941748 + 131941749.

It is an arithmetic number, because the mean of its divisors is an integer number (131941749).

Almost surely, 2^263883497 is an apocalyptic number.

It is an amenable number.

263883497 is a deficient number, since it is larger than the sum of its proper divisors (1).

263883497 is an equidigital number, since it uses as much as digits as its factorization.

263883497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 50.

The square root of 263883497 is about 16244.4912816622. The cubic root of 263883497 is about 641.4124866166.

The spelling of 263883497 in words is "two hundred sixty-three million, eight hundred eighty-three thousand, four hundred ninety-seven".