487129 has 4 divisors (see below), whose sum is σ = 493876. Its totient is φ = 480384.

The previous prime is 487111. The next prime is 487133. The reversal of 487129 is 921784.

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 121104 + 366025 = 348^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 487129 - 2⁹ = 486617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 487129.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3264 + ... + 3409.

It is an arithmetic number, because the mean of its divisors is an integer number (123469).

2⁴⁸⁷¹²⁹ is an apocalyptic number.

It is an amenable number.

487129 is a deficient number, since it is larger than the sum of its proper divisors (6747).

487129 is an equidigital number, since it uses as much as digits as its factorization.

487129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6746.

The product of its digits is 4032, while the sum is 31.

The square root of 487129 is about 697.9462730039. The cubic root of 487129 is about 78.6830757528.

It can be divided in two parts, 4871 and 29, that added together give a square (4900 = 70²).

The spelling of 487129 in words is "four hundred eighty-seven thousand, one hundred twenty-nine".