487684 has 6 divisors (see below), whose sum is σ = 853454. Its totient is φ = 243840.

The previous prime is 487681. The next prime is 487691. The reversal of 487684 is 486784.

It can be written as a sum of positive squares in only one way, i.e., 451584 + 36100 = 672^2 + 190^2 .

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (487681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60957 + ... + 60964.

2⁴⁸⁷⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

487684 is a deficient number, since it is larger than the sum of its proper divisors (365770).

487684 is a wasteful number, since it uses less digits than its factorization.

487684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121925 (or 121923 counting only the distinct ones).

The product of its digits is 43008, while the sum is 37.

The square root of 487684 is about 698.3437548944. The cubic root of 487684 is about 78.7129463710.

Subtracting from 487684 its reverse (486784), we obtain a square (900 = 30²).

The spelling of 487684 in words is "four hundred eighty-seven thousand, six hundred eighty-four".