263450339 has 2 divisors, whose sum is σ = 263450340. Its totient is φ = 263450338.

The previous prime is 263450279. The next prime is 263450393. The reversal of 263450339 is 933054362.

Together with next prime (263450393) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 263450339 - 2¹² = 263446243 is a prime.

It is a super-2 number, since 2×263450339² = 138812162238429842, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 263450299 and 263450308.

It is not a weakly prime, because it can be changed into another prime (263450939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131725169 + 131725170.

It is an arithmetic number, because the mean of its divisors is an integer number (131725170).

Almost surely, 2^263450339 is an apocalyptic number.

263450339 is a deficient number, since it is larger than the sum of its proper divisors (1).

263450339 is an equidigital number, since it uses as much as digits as its factorization.

263450339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 35.

The square root of 263450339 is about 16231.1533478062. The cubic root of 263450339 is about 641.0613403591.

The spelling of 263450339 in words is "two hundred sixty-three million, four hundred fifty thousand, three hundred thirty-nine".