87073 has 6 divisors (see below), whose sum is σ = 101346. Its totient is φ = 74592.

The previous prime is 87071. The next prime is 87083. The reversal of 87073 is 37078.

It can be written as a sum of positive squares in only one way, i.e., 74529 + 12544 = 273^2 + 112^2 .

It is not a de Polignac number, because 87073 - 2¹ = 87071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 840 + ... + 937.

It is an arithmetic number, because the mean of its divisors is an integer number (16891).

2⁸⁷⁰⁷³ is an apocalyptic number.

It is an amenable number.

87073 is a deficient number, since it is larger than the sum of its proper divisors (14273).

87073 is a wasteful number, since it uses less digits than its factorization.

87073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791 (or 1784 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 87073 is about 295.0813447170. The cubic root of 87073 is about 44.3228661038.

The spelling of 87073 in words is "eighty-seven thousand, seventy-three".