686850112 has 56 divisors (see below), whose sum is σ = 1476244952. Its totient is φ = 315187200.

The previous prime is 686850107. The next prime is 686850119. The reversal of 686850112 is 211058686.

It can be written as a sum of positive squares in 4 ways, for example, as 34762816 + 652087296 = 5896^2 + 25536^2 .

It is not an unprimeable number, because it can be changed into a prime (686850119) 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, 148312 + ... + 152872.

It is an arithmetic number, because the mean of its divisors is an integer number (26361517).

Almost surely, 2^686850112 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 686850112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (738122476).

686850112 is an abundant number, since it is smaller than the sum of its proper divisors (789394840).

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

686850112 is a wasteful number, since it uses less digits than its factorization.

686850112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4767 (or 4757 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 686850112 is about 26207.8253962438. The cubic root of 686850112 is about 882.3088954271.

The spelling of 686850112 in words is "six hundred eighty-six million, eight hundred fifty thousand, one hundred twelve".