287902 has 8 divisors (see below), whose sum is σ = 442512. Its totient is φ = 140400.

The previous prime is 287887. The next prime is 287921. The reversal of 287902 is 209782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1674 + ... + 1837.

It is an arithmetic number, because the mean of its divisors is an integer number (55314).

2²⁸⁷⁹⁰² is an apocalyptic number.

287902 is a deficient number, since it is larger than the sum of its proper divisors (154610).

287902 is a wasteful number, since it uses less digits than its factorization.

287902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3554.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 287902 is about 536.5650007222. The cubic root of 287902 is about 66.0310536450.

The spelling of 287902 in words is "two hundred eighty-seven thousand, nine hundred two".