685286484 has 24 divisors (see below), whose sum is σ = 1603465920. Its totient is φ = 227791104.

The previous prime is 685286477. The next prime is 685286489. The reversal of 685286484 is 484682586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685286489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75229 + ... + 83844.

It is an arithmetic number, because the mean of its divisors is an integer number (66811080).

Almost surely, 2^685286484 is an apocalyptic number.

It is an amenable number.

685286484 is an abundant number, since it is smaller than the sum of its proper divisors (918179436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685286484 is a wasteful number, since it uses less digits than its factorization.

685286484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159439 (or 159437 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 51.

The square root of 685286484 is about 26177.9770799808. The cubic root of 685286484 is about 881.6388554415.

The spelling of 685286484 in words is "six hundred eighty-five million, two hundred eighty-six thousand, four hundred eighty-four".