487278 has 48 divisors (see below), whose sum is σ = 1213056. Its totient is φ = 139920.

The previous prime is 487261. The next prime is 487283. The reversal of 487278 is 872784.

487278 = 7² + 8² + ... + 113².

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

487278 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4501 + ... + 4607.

It is an arithmetic number, because the mean of its divisors is an integer number (25272).

2⁴⁸⁷²⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 487278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606528).

487278 is an abundant number, since it is smaller than the sum of its proper divisors (725778).

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

487278 is a wasteful number, since it uses less digits than its factorization.

487278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 146 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 487278 is about 698.0530065833. The cubic root of 487278 is about 78.6910972989.

It can be divided in two parts, 4872 and 78, that added together give a triangular number (4950 = T₉₉).

The spelling of 487278 in words is "four hundred eighty-seven thousand, two hundred seventy-eight".