685062238 has 16 divisors (see below), whose sum is σ = 1198360800. Its totient is φ = 293597808.

The previous prime is 685062229. The next prime is 685062241. The reversal of 685062238 is 832260586.

685062238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 685062238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498631 + ... + 500002.

It is an arithmetic number, because the mean of its divisors is an integer number (74897550).

Almost surely, 2^685062238 is an apocalyptic number.

685062238 is a deficient number, since it is larger than the sum of its proper divisors (513298562).

685062238 is an equidigital number, since it uses as much as digits as its factorization.

685062238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998656 (or 998642 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 685062238 is about 26173.6936254706. The cubic root of 685062238 is about 881.5426788496.

The spelling of 685062238 in words is "six hundred eighty-five million, sixty-two thousand, two hundred thirty-eight".