685127773 has 12 divisors (see below), whose sum is σ = 758840544. Its totient is φ = 618074600.

The previous prime is 685127771. The next prime is 685127791. The reversal of 685127773 is 377721586.

685127773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 685127773 - 2¹ = 685127771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685127771) 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, 5761 + ... + 37462.

It is an arithmetic number, because the mean of its divisors is an integer number (63236712).

Almost surely, 2^685127773 is an apocalyptic number.

It is an amenable number.

685127773 is a deficient number, since it is larger than the sum of its proper divisors (73712771).

685127773 is a wasteful number, since it uses less digits than its factorization.

685127773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43376 (or 43365 counting only the distinct ones).

The product of its digits is 493920, while the sum is 46.

The square root of 685127773 is about 26174.9455204782. The cubic root of 685127773 is about 881.5707882457.

The spelling of 685127773 in words is "six hundred eighty-five million, one hundred twenty-seven thousand, seven hundred seventy-three".