685641303 has 6 divisors (see below), whose sum is σ = 990370784. Its totient is φ = 457094196.

The previous prime is 685641223. The next prime is 685641323. The reversal of 685641303 is 303146586.

685641303 is a `hidden beast` number, since 6 + 8 + 5 + 641 + 3 + 0 + 3 = 666.

It is not a de Polignac number, because 685641303 - 2¹³ = 685633111 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 (685641323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38091175 + ... + 38091192.

Almost surely, 2^685641303 is an apocalyptic number.

685641303 is a deficient number, since it is larger than the sum of its proper divisors (304729481).

685641303 is a wasteful number, since it uses less digits than its factorization.

685641303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76182373 (or 76182370 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 685641303 is about 26184.7532545182. The cubic root of 685641303 is about 881.7909904732.

Adding to 685641303 its reverse (303146586), we get a palindrome (988787889).

The spelling of 685641303 in words is "six hundred eighty-five million, six hundred forty-one thousand, three hundred three".