263828673 has 12 divisors (see below), whose sum is σ = 381672720. Its totient is φ = 175614936.

The previous prime is 263828581. The next prime is 263828683. The reversal of 263828673 is 376828362.

263828673 is a `hidden beast` number, since 2 + 638 + 2 + 8 + 6 + 7 + 3 = 666.

It is not a de Polignac number, because 263828673 - 2¹³ = 263820481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (263828683) 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, 16311 + ... + 28172.

It is an arithmetic number, because the mean of its divisors is an integer number (31806060).

Almost surely, 2^263828673 is an apocalyptic number.

It is an amenable number.

263828673 is a deficient number, since it is larger than the sum of its proper divisors (117844047).

263828673 is a wasteful number, since it uses less digits than its factorization.

263828673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45148 (or 45145 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 263828673 is about 16242.8037296521. The cubic root of 263828673 is about 641.3680639401.

The spelling of 263828673 in words is "two hundred sixty-three million, eight hundred twenty-eight thousand, six hundred seventy-three".