686506912 has 48 divisors (see below), whose sum is σ = 1663466112. Its totient is φ = 271584000.

The previous prime is 686506889. The next prime is 686506913. The reversal of 686506912 is 219605686.

It is not an unprimeable number, because it can be changed into a prime (686506913) 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 7 ways as a sum of consecutive naturals, for example, 114964 + ... + 120787.

It is an arithmetic number, because the mean of its divisors is an integer number (34655544).

Almost surely, 2^686506912 is an apocalyptic number.

It is an amenable number.

686506912 is an abundant number, since it is smaller than the sum of its proper divisors (976959200).

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

686506912 is a wasteful number, since it uses less digits than its factorization.

686506912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235781 (or 235773 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 686506912 is about 26201.2769154482. The cubic root of 686506912 is about 882.1619158282.

The spelling of 686506912 in words is "six hundred eighty-six million, five hundred six thousand, nine hundred twelve".