287849223 has 12 divisors (see below), whose sum is σ = 416421720. Its totient is φ = 191604336.

The previous prime is 287849213. The next prime is 287849231. The reversal of 287849223 is 322948782.

It is not a de Polignac number, because 287849223 - 2⁴ = 287849207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287849213) 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, 18336 + ... + 30197.

It is an arithmetic number, because the mean of its divisors is an integer number (34701810).

Almost surely, 2^287849223 is an apocalyptic number.

287849223 is a deficient number, since it is larger than the sum of its proper divisors (128572497).

287849223 is a wasteful number, since it uses less digits than its factorization.

287849223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49198 (or 49195 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 287849223 is about 16966.1198569384. The cubic root of 287849223 is about 660.2701855218.

The spelling of 287849223 in words is "two hundred eighty-seven million, eight hundred forty-nine thousand, two hundred twenty-three".