287472073 has 24 divisors (see below), whose sum is σ = 342816000. Its totient is φ = 240923592.

The previous prime is 287472061. The next prime is 287472079. The reversal of 287472073 is 370274782.

It is not a de Polignac number, because 287472073 - 2¹³ = 287463881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (287472079) 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 23 ways as a sum of consecutive naturals, for example, 2790940 + ... + 2791042.

It is an arithmetic number, because the mean of its divisors is an integer number (14284000).

Almost surely, 2^287472073 is an apocalyptic number.

It is an amenable number.

287472073 is a deficient number, since it is larger than the sum of its proper divisors (55343927).

287472073 is an frugal number, since it uses more digits than its factorization.

287472073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 40.

The square root of 287472073 is about 16955.0014155116. The cubic root of 287472073 is about 659.9816898808.

It can be divided in two parts, 2874 and 72073, that added together give a palindrome (74947).

The spelling of 287472073 in words is "two hundred eighty-seven million, four hundred seventy-two thousand, seventy-three".