686099316 has 96 divisors (see below), whose sum is σ = 1900781568. Its totient is φ = 188484480.

The previous prime is 686099287. The next prime is 686099317. The reversal of 686099316 is 613990686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686099317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 449731 + ... + 451253.

It is an arithmetic number, because the mean of its divisors is an integer number (19799808).

Almost surely, 2^686099316 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 686099316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (950390784).

686099316 is an abundant number, since it is smaller than the sum of its proper divisors (1214682252).

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

686099316 is a wasteful number, since it uses less digits than its factorization.

686099316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741 (or 1739 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 686099316 is about 26193.4975900509. The cubic root of 686099316 is about 881.9872942056.

The spelling of 686099316 in words is "six hundred eighty-six million, ninety-nine thousand, three hundred sixteen".