487121 has 6 divisors (see below), whose sum is σ = 503622. Its totient is φ = 470880.

The previous prime is 487111. The next prime is 487133. The reversal of 487121 is 121784.

It can be written as a sum of positive squares in 3 ways, for example, as 46225 + 440896 = 215^2 + 664^2 .

It is not a de Polignac number, because 487121 - 2⁶ = 487057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487111) 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, 4415 + ... + 4523.

It is an arithmetic number, because the mean of its divisors is an integer number (83937).

2⁴⁸⁷¹²¹ is an apocalyptic number.

487121 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

487121 is a deficient number, since it is larger than the sum of its proper divisors (16501).

487121 is an equidigital number, since it uses as much as digits as its factorization.

487121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 150 counting only the distinct ones).

The product of its digits is 448, while the sum is 23.

The square root of 487121 is about 697.9405418802. The cubic root of 487121 is about 78.6826450195.

The spelling of 487121 in words is "four hundred eighty-seven thousand, one hundred twenty-one".