487549 has 4 divisors (see below), whose sum is σ = 500764. Its totient is φ = 474336.

The previous prime is 487507. The next prime is 487561. The reversal of 487549 is 945784.

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 381924 + 105625 = 618^2 + 325^2 .

It is a cyclic number.

It is not a de Polignac number, because 487549 - 2¹³ = 479357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 13177 = 487549 / (4 + 8 + 7 + 5 + 4 + 9).

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6552 + ... + 6625.

It is an arithmetic number, because the mean of its divisors is an integer number (125191).

2⁴⁸⁷⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

487549 is a deficient number, since it is larger than the sum of its proper divisors (13215).

487549 is a wasteful number, since it uses less digits than its factorization.

487549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13214.

The product of its digits is 40320, while the sum is 37.

The square root of 487549 is about 698.2470909356. The cubic root of 487549 is about 78.7056826316.

The spelling of 487549 in words is "four hundred eighty-seven thousand, five hundred forty-nine".