263894873 has 8 divisors (see below), whose sum is σ = 288243360. Its totient is φ = 239606080.

The previous prime is 263894861. The next prime is 263894929. The reversal of 263894873 is 378498362.

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

It is a cyclic number.

It is not a de Polignac number, because 263894873 - 2¹⁶ = 263829337 is a prime.

It is a super-3 number, since 3×263894873³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (263894833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5408 + ... + 23601.

It is an arithmetic number, because the mean of its divisors is an integer number (36030420).

Almost surely, 2^263894873 is an apocalyptic number.

It is an amenable number.

263894873 is a deficient number, since it is larger than the sum of its proper divisors (24348487).

263894873 is a wasteful number, since it uses less digits than its factorization.

263894873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29847.

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

The square root of 263894873 is about 16244.8414273578. The cubic root of 263894873 is about 641.4217035674.

The spelling of 263894873 in words is "two hundred sixty-three million, eight hundred ninety-four thousand, eight hundred seventy-three".