686115258 has 8 divisors (see below), whose sum is σ = 1372230528. Its totient is φ = 228705084.

The previous prime is 686115253. The next prime is 686115271. The reversal of 686115258 is 852511686.

686115258 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

686115258 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (686115253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57176266 + ... + 57176277.

It is an arithmetic number, because the mean of its divisors is an integer number (171528816).

Almost surely, 2^686115258 is an apocalyptic number.

686115258 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

686115258 is a wasteful number, since it uses less digits than its factorization.

686115258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114352548.

The product of its digits is 115200, while the sum is 42.

The square root of 686115258 is about 26193.8019004497. The cubic root of 686115258 is about 881.9941253510.

The spelling of 686115258 in words is "six hundred eighty-six million, one hundred fifteen thousand, two hundred fifty-eight".