685306301 has 4 divisors (see below), whose sum is σ = 687496092. Its totient is φ = 683116512.

The previous prime is 685306289. The next prime is 685306313. The reversal of 685306301 is 103603586.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (685306289) and next prime (685306313).

It can be written as a sum of positive squares in 2 ways, for example, as 17859076 + 667447225 = 4226^2 + 25835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-685306301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685306331) 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, 1094426 + ... + 1095051.

It is an arithmetic number, because the mean of its divisors is an integer number (171874023).

Almost surely, 2^685306301 is an apocalyptic number.

It is an amenable number.

685306301 is a deficient number, since it is larger than the sum of its proper divisors (2189791).

685306301 is a wasteful number, since it uses less digits than its factorization.

685306301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189790.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 685306301 is about 26178.3555824273. The cubic root of 685306301 is about 881.6473537213.

Adding to 685306301 its reverse (103603586), we get a palindrome (788909887).

The spelling of 685306301 in words is "six hundred eighty-five million, three hundred six thousand, three hundred one".