685658341 has 4 divisors (see below), whose sum is σ = 707776384. Its totient is φ = 663540300.

The previous prime is 685658327. The next prime is 685658353. The reversal of 685658341 is 143856586.

685658341 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 685658341 - 2²¹ = 683561189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 685658291 and 685658300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685658321) 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, 11058975 + ... + 11059036.

It is an arithmetic number, because the mean of its divisors is an integer number (176944096).

Almost surely, 2^685658341 is an apocalyptic number.

It is an amenable number.

685658341 is a deficient number, since it is larger than the sum of its proper divisors (22118043).

685658341 is a wasteful number, since it uses less digits than its factorization.

685658341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22118042.

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

The square root of 685658341 is about 26185.0785944973. The cubic root of 685658341 is about 881.7982945015.

The spelling of 685658341 in words is "six hundred eighty-five million, six hundred fifty-eight thousand, three hundred forty-one".