287216673 has 16 divisors (see below), whose sum is σ = 406022400. Its totient is φ = 180090000.

The previous prime is 287216669. The next prime is 287216701. The reversal of 287216673 is 376612782.

It is not a de Polignac number, because 287216673 - 2² = 287216669 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (287215673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10203 + ... + 26048.

It is an arithmetic number, because the mean of its divisors is an integer number (25376400).

Almost surely, 2^287216673 is an apocalyptic number.

It is an amenable number.

287216673 is a deficient number, since it is larger than the sum of its proper divisors (118805727).

287216673 is a wasteful number, since it uses less digits than its factorization.

287216673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36412.

The product of its digits is 169344, while the sum is 42.

The square root of 287216673 is about 16947.4680409789. The cubic root of 287216673 is about 659.7861818853.

The spelling of 287216673 in words is "two hundred eighty-seven million, two hundred sixteen thousand, six hundred seventy-three".