263248447 has 12 divisors (see below), whose sum is σ = 330693328. Its totient is φ = 205128000.

The previous prime is 263248421. The next prime is 263248463. The reversal of 263248447 is 744842362.

It is not a de Polignac number, because 263248447 - 2¹⁹ = 262724159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263248847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154554 + ... + 156247.

Almost surely, 2^263248447 is an apocalyptic number.

263248447 is a deficient number, since it is larger than the sum of its proper divisors (67444881).

263248447 is a wasteful number, since it uses less digits than its factorization.

263248447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310830 (or 310819 counting only the distinct ones).

The product of its digits is 258048, while the sum is 40.

The square root of 263248447 is about 16224.9328812171. The cubic root of 263248447 is about 640.8975419599.

The spelling of 263248447 in words is "two hundred sixty-three million, two hundred forty-eight thousand, four hundred forty-seven".