87029 has 4 divisors (see below), whose sum is σ = 90060. Its totient is φ = 84000.

The previous prime is 87013. The next prime is 87037. The reversal of 87029 is 92078.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46225 + 40804 = 215^2 + 202^2 .

It is a cyclic number.

It is not a de Polignac number, because 87029 - 2⁴ = 87013 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 86989 and 87007.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 87029.

It is not an unprimeable number, because it can be changed into a prime (87049) 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 3 ways as a sum of consecutive naturals, for example, 1472 + ... + 1529.

It is an arithmetic number, because the mean of its divisors is an integer number (22515).

2⁸⁷⁰²⁹ is an apocalyptic number.

It is an amenable number.

87029 is a deficient number, since it is larger than the sum of its proper divisors (3031).

87029 is a wasteful number, since it uses less digits than its factorization.

87029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 87029 is about 295.0067795831. The cubic root of 87029 is about 44.3153990562.

The spelling of 87029 in words is "eighty-seven thousand, twenty-nine".