685480443 has 16 divisors (see below), whose sum is σ = 968347296. Its totient is φ = 429834240.

The previous prime is 685480427. The next prime is 685480469. The reversal of 685480443 is 344084586.

It is not a de Polignac number, because 685480443 - 2⁴ = 685480427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 685480395 and 685480404.

It is not an unprimeable number, because it can be changed into a prime (685487443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104583 + ... + 110943.

It is an arithmetic number, because the mean of its divisors is an integer number (60521706).

Almost surely, 2^685480443 is an apocalyptic number.

685480443 is a deficient number, since it is larger than the sum of its proper divisors (282866853).

685480443 is a wasteful number, since it uses less digits than its factorization.

685480443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8494.

The product of its (nonzero) digits is 368640, while the sum is 42.

The square root of 685480443 is about 26181.6814395103. The cubic root of 685480443 is about 881.7220253587.

The spelling of 685480443 in words is "six hundred eighty-five million, four hundred eighty thousand, four hundred forty-three".