685259067 has 16 divisors (see below), whose sum is σ = 952100640. Its totient is φ = 437859072.

The previous prime is 685259063. The next prime is 685259083. The reversal of 685259067 is 760952586.

It is a happy number.

685259067 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 685259067 - 2² = 685259063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (685259063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16828 + ... + 40665.

It is an arithmetic number, because the mean of its divisors is an integer number (59506290).

Almost surely, 2^685259067 is an apocalyptic number.

685259067 is a deficient number, since it is larger than the sum of its proper divisors (266841573).

685259067 is a wasteful number, since it uses less digits than its factorization.

685259067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57662.

The product of its (nonzero) digits is 907200, while the sum is 48.

The square root of 685259067 is about 26177.4534093750. The cubic root of 685259067 is about 881.6270977239.

The spelling of 685259067 in words is "six hundred eighty-five million, two hundred fifty-nine thousand, sixty-seven".