685330471 has 16 divisors (see below), whose sum is σ = 829499904. Its totient is φ = 553490784.

The previous prime is 685330463. The next prime is 685330487. The reversal of 685330471 is 174033586.

It is not a de Polignac number, because 685330471 - 2³ = 685330463 is a prime.

It is a super-3 number, since 3×685330471³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 685330471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685330441) 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 15 ways as a sum of consecutive naturals, for example, 20980 + ... + 42553.

It is an arithmetic number, because the mean of its divisors is an integer number (51843744).

Almost surely, 2^685330471 is an apocalyptic number.

685330471 is a deficient number, since it is larger than the sum of its proper divisors (144169433).

685330471 is a wasteful number, since it uses less digits than its factorization.

685330471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63630.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 685330471 is about 26178.8172192710. The cubic root of 685330471 is about 881.6577185105.

The spelling of 685330471 in words is "six hundred eighty-five million, three hundred thirty thousand, four hundred seventy-one".