263413871 has 8 divisors (see below), whose sum is σ = 314133504. Its totient is φ = 215966520.

The previous prime is 263413849. The next prime is 263413901. The reversal of 263413871 is 178314362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 263413871 - 2¹⁰ = 263412847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263413811) 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 in 7 ways as a sum of consecutive naturals, for example, 817895 + ... + 818216.

It is an arithmetic number, because the mean of its divisors is an integer number (39266688).

Almost surely, 2^263413871 is an apocalyptic number.

263413871 is a deficient number, since it is larger than the sum of its proper divisors (50719633).

263413871 is a wasteful number, since it uses less digits than its factorization.

263413871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636141.

The product of its digits is 24192, while the sum is 35.

The square root of 263413871 is about 16230.0299137124. The cubic root of 263413871 is about 641.0317594472.

The spelling of 263413871 in words is "two hundred sixty-three million, four hundred thirteen thousand, eight hundred seventy-one".