87147 has 12 divisors (see below), whose sum is σ = 131664. Its totient is φ = 55440.

The previous prime is 87133. The next prime is 87149. The reversal of 87147 is 74178.

It is not a de Polignac number, because 87147 - 2⁶ = 87083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87147.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 87147.

It is not an unprimeable number, because it can be changed into a prime (87149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4 + ... + 417.

It is an arithmetic number, because the mean of its divisors is an integer number (10972).

2⁸⁷¹⁴⁷ is an apocalyptic number.

87147 is a deficient number, since it is larger than the sum of its proper divisors (44517).

87147 is a wasteful number, since it uses less digits than its factorization.

87147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 447 counting only the distinct ones).

The product of its digits is 1568, while the sum is 27.

The square root of 87147 is about 295.2067072409. The cubic root of 87147 is about 44.3354186493.

The spelling of 87147 in words is "eighty-seven thousand, one hundred forty-seven".