487886785 has 4 divisors (see below), whose sum is σ = 585464148. Its totient is φ = 390309424.

The previous prime is 487886779. The next prime is 487886849. The reversal of 487886785 is 587688784.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 287607681 + 200279104 = 16959^2 + 14152^2 .

It is a cyclic number.

It is not a de Polignac number, because 487886785 - 2⁷ = 487886657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48788674 + ... + 48788683.

It is an arithmetic number, because the mean of its divisors is an integer number (146366037).

Almost surely, 2^487886785 is an apocalyptic number.

It is an amenable number.

487886785 is a deficient number, since it is larger than the sum of its proper divisors (97577363).

487886785 is an equidigital number, since it uses as much as digits as its factorization.

487886785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97577362.

The product of its digits is 24084480, while the sum is 61.

The square root of 487886785 is about 22088.1593846115. The cubic root of 487886785 is about 787.2385479595.

The spelling of 487886785 in words is "four hundred eighty-seven million, eight hundred eighty-six thousand, seven hundred eighty-five".