686956422 has 8 divisors (see below), whose sum is σ = 1373912856. Its totient is φ = 228985472.

The previous prime is 686956421. The next prime is 686956423. The reversal of 686956422 is 224659686.

It is a happy number.

686956422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (686956421) and next prime (686956423).

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

686956422 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686956421) 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, 57246363 + ... + 57246374.

It is an arithmetic number, because the mean of its divisors is an integer number (171739107).

Almost surely, 2^686956422 is an apocalyptic number.

686956422 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.

686956422 is a wasteful number, since it uses less digits than its factorization.

686956422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114492742.

The product of its digits is 1244160, while the sum is 48.

The square root of 686956422 is about 26209.8535287781. The cubic root of 686956422 is about 882.3544140530.

It can be divided in two parts, 686956 and 422, that added together give a triangular number (687378 = T₁₁₇₂).

The spelling of 686956422 in words is "six hundred eighty-six million, nine hundred fifty-six thousand, four hundred twenty-two".