287673 has 4 divisors (see below), whose sum is σ = 383568. Its totient is φ = 191780.

The previous prime is 287671. The next prime is 287681. The reversal of 287673 is 376782.

287673 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 287673 - 2¹ = 287671 is a prime.

It is a D-number.

287673 is strictly pandigital in base 7.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 287673.

It is not an unprimeable number, because it can be changed into a prime (287671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47943 + ... + 47948.

It is an arithmetic number, because the mean of its divisors is an integer number (95892).

2²⁸⁷⁶⁷³ is an apocalyptic number.

It is an amenable number.

287673 is a deficient number, since it is larger than the sum of its proper divisors (95895).

287673 is an equidigital number, since it uses as much as digits as its factorization.

287673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95894.

The product of its digits is 14112, while the sum is 33.

The square root of 287673 is about 536.3515638087. The cubic root of 287673 is about 66.0135417576.

The spelling of 287673 in words is "two hundred eighty-seven thousand, six hundred seventy-three".