87003 has 12 divisors (see below), whose sum is σ = 143728. Its totient is φ = 49680.

The previous prime is 86993. The next prime is 87011. The reversal of 87003 is 30078.

It is not a de Polignac number, because 87003 - 2⁶ = 86939 is a prime.

It is a Duffinian number.

87003 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (87013) 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 11 ways as a sum of consecutive naturals, for example, 628 + ... + 753.

2⁸⁷⁰⁰³ is an apocalyptic number.

87003 is a deficient number, since it is larger than the sum of its proper divisors (56725).

87003 is a wasteful number, since it uses less digits than its factorization.

87003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394 (or 1391 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 87003 is about 294.9627095075. The cubic root of 87003 is about 44.3109855269.

The spelling of 87003 in words is "eighty-seven thousand, three".