678585585 has 8 divisors (see below), whose sum is σ = 1085736960. Its totient is φ = 361912304.

The previous prime is 678585521. The next prime is 678585619. The reversal of 678585585 is 585585876.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 678585585 - 2⁶ = 678585521 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22619505 + ... + 22619534.

It is an arithmetic number, because the mean of its divisors is an integer number (135717120).

Almost surely, 2^678585585 is an apocalyptic number.

It is an amenable number.

678585585 is a deficient number, since it is larger than the sum of its proper divisors (407151375).

678585585 is a wasteful number, since it uses less digits than its factorization.

678585585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45239047.

The product of its digits is 13440000, while the sum is 57.

The square root of 678585585 is about 26049.6753338693. The cubic root of 678585585 is about 878.7558110321.

It can be divided in two parts, 6785855 and 85, that multiplied together give a palindrome (576797675).

The spelling of 678585585 in words is "six hundred seventy-eight million, five hundred eighty-five thousand, five hundred eighty-five".