487531 has 16 divisors (see below), whose sum is σ = 580608. Its totient is φ = 404800.

The previous prime is 487507. The next prime is 487561. The reversal of 487531 is 135784.

It is not a de Polignac number, because 487531 - 2¹⁵ = 454763 is a prime.

It is a super-2 number, since 2×487531² = 475372951922, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 5.

It is a self number, because there is not a number n which added to its sum of digits gives 487531.

It is not an unprimeable number, because it can be changed into a prime (487561) 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 15 ways as a sum of consecutive naturals, for example, 10350 + ... + 10396.

It is an arithmetic number, because the mean of its divisors is an integer number (36288).

2⁴⁸⁷⁵³¹ is an apocalyptic number.

487531 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

487531 is a deficient number, since it is larger than the sum of its proper divisors (93077).

487531 is a wasteful number, since it uses less digits than its factorization.

487531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122.

The product of its digits is 3360, while the sum is 28.

The square root of 487531 is about 698.2342013966. The cubic root of 487531 is about 78.7047140317.

The spelling of 487531 in words is "four hundred eighty-seven thousand, five hundred thirty-one".