686558341 has 12 divisors (see below), whose sum is σ = 788732256. Its totient is φ = 585423720.

The previous prime is 686558329. The next prime is 686558399. The reversal of 686558341 is 143855686.

It is a de Polignac number, because none of the positive numbers 2^k-686558341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 686558291 and 686558300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686528341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 310546 + ... + 312748.

It is an arithmetic number, because the mean of its divisors is an integer number (65727688).

Almost surely, 2^686558341 is an apocalyptic number.

It is an amenable number.

686558341 is a deficient number, since it is larger than the sum of its proper divisors (102173915).

686558341 is an equidigital number, since it uses as much as digits as its factorization.

686558341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632 (or 2421 counting only the distinct ones).

The product of its digits is 691200, while the sum is 46.

The square root of 686558341 is about 26202.2583187022. The cubic root of 686558341 is about 882.1839440465.

The spelling of 686558341 in words is "six hundred eighty-six million, five hundred fifty-eight thousand, three hundred forty-one".