686550342 has 8 divisors (see below), whose sum is σ = 1373100696. Its totient is φ = 228850112.

The previous prime is 686550269. The next prime is 686550349. The reversal of 686550342 is 243055686.

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

686550342 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 686550342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686550349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57212523 + ... + 57212534.

It is an arithmetic number, because the mean of its divisors is an integer number (171637587).

Almost surely, 2^686550342 is an apocalyptic number.

686550342 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.

686550342 is a wasteful number, since it uses less digits than its factorization.

686550342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114425062.

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 686550342 is about 26202.1056787427. The cubic root of 686550342 is about 882.1805179639.

The spelling of 686550342 in words is "six hundred eighty-six million, five hundred fifty thousand, three hundred forty-two".