686925712 has 60 divisors (see below), whose sum is σ = 1471086400. Its totient is φ = 310495680.

The previous prime is 686925709. The next prime is 686925713. The reversal of 686925712 is 217529686.

It is not an unprimeable number, because it can be changed into a prime (686925713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 384373 + ... + 386155.

Almost surely, 2^686925712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 686925712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735543200).

686925712 is an abundant number, since it is smaller than the sum of its proper divisors (784160688).

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

686925712 is a wasteful number, since it uses less digits than its factorization.

686925712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012 (or 1995 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 686925712 is about 26209.2676738592. The cubic root of 686925712 is about 882.3412654713.

The spelling of 686925712 in words is "six hundred eighty-six million, nine hundred twenty-five thousand, seven hundred twelve".