685027418 has 8 divisors (see below), whose sum is σ = 1030824948. Its totient is φ = 341419104.

The previous prime is 685027417. The next prime is 685027471. The reversal of 685027418 is 814720586.

It can be written as a sum of positive squares in 2 ways, for example, as 449312809 + 235714609 = 21197^2 + 15353^2 .

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

It is not an unprimeable number, because it can be changed into a prime (685027417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546521 + ... + 547772.

Almost surely, 2^685027418 is an apocalyptic number.

685027418 is a deficient number, since it is larger than the sum of its proper divisors (345797530).

685027418 is a wasteful number, since it uses less digits than its factorization.

685027418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094608.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 685027418 is about 26173.0284453290. The cubic root of 685027418 is about 881.5277430601.

The spelling of 685027418 in words is "six hundred eighty-five million, twenty-seven thousand, four hundred eighteen".