287472269 has 12 divisors (see below), whose sum is σ = 345195648. Its totient is φ = 238455000.

The previous prime is 287472221. The next prime is 287472281. The reversal of 287472269 is 962274782.

It is not a de Polignac number, because 287472269 - 2²⁴ = 270695053 is a prime.

It is a super-2 number, since 2×287472269² = 165280610888016722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287472209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93107 + ... + 96144.

It is an arithmetic number, because the mean of its divisors is an integer number (28766304).

Almost surely, 2^287472269 is an apocalyptic number.

It is an amenable number.

287472269 is a deficient number, since it is larger than the sum of its proper divisors (57723379).

287472269 is a wasteful number, since it uses less digits than its factorization.

287472269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189296 (or 189289 counting only the distinct ones).

The product of its digits is 677376, while the sum is 47.

The square root of 287472269 is about 16955.0071955160. The cubic root of 287472269 is about 659.9818398738.

The spelling of 287472269 in words is "two hundred eighty-seven million, four hundred seventy-two thousand, two hundred sixty-nine".