487178478 has 12 divisors (see below), whose sum is σ = 1055553408. Its totient is φ = 162392820.

The previous prime is 487178431. The next prime is 487178501. The reversal of 487178478 is 874871784.

487178478 is a `hidden beast` number, since 487 + 17 + 84 + 78 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13532718 + ... + 13532753.

It is an arithmetic number, because the mean of its divisors is an integer number (87962784).

Almost surely, 2^487178478 is an apocalyptic number.

487178478 is an abundant number, since it is smaller than the sum of its proper divisors (568374930).

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

487178478 is a wasteful number, since it uses less digits than its factorization.

487178478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27065479 (or 27065476 counting only the distinct ones).

The product of its digits is 2809856, while the sum is 54.

The square root of 487178478 is about 22072.1199253719. The cubic root of 487178478 is about 786.8573962587.

The spelling of 487178478 in words is "four hundred eighty-seven million, one hundred seventy-eight thousand, four hundred seventy-eight".