487720 has 32 divisors (see below), whose sum is σ = 1117800. Its totient is φ = 191488.

The previous prime is 487717. The next prime is 487727. The reversal of 487720 is 27784.

It can be written as a sum of positive squares in 4 ways, for example, as 338724 + 148996 = 582^2 + 386^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (487727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3492 + ... + 3628.

2⁴⁸⁷⁷²⁰ is an apocalyptic number.

487720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 487720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558900).

487720 is an abundant number, since it is smaller than the sum of its proper divisors (630080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

487720 is a wasteful number, since it uses less digits than its factorization.

487720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 487720 is about 698.3695296904. The cubic root of 487720 is about 78.7148831418.

The spelling of 487720 in words is "four hundred eighty-seven thousand, seven hundred twenty".