487778655 has 32 divisors (see below), whose sum is σ = 960551424. Its totient is φ = 205831296.

The previous prime is 487778611. The next prime is 487778657. The reversal of 487778655 is 556877784.

It is not a de Polignac number, because 487778655 - 2¹⁴ = 487762271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 487778595 and 487778604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487778657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177309 + ... + 180038.

It is an arithmetic number, because the mean of its divisors is an integer number (30017232).

Almost surely, 2^487778655 is an apocalyptic number.

487778655 is a deficient number, since it is larger than the sum of its proper divisors (472772769).

487778655 is a wasteful number, since it uses less digits than its factorization.

487778655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357375.

The product of its digits is 13171200, while the sum is 57.

The square root of 487778655 is about 22085.7115574753. The cubic root of 487778655 is about 787.1803852899.

The spelling of 487778655 in words is "four hundred eighty-seven million, seven hundred seventy-eight thousand, six hundred fifty-five".