685295222 has 4 divisors (see below), whose sum is σ = 1027942836. Its totient is φ = 342647610.

The previous prime is 685295209. The next prime is 685295231. The reversal of 685295222 is 222592586.

685295222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 685295222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171323804 + ... + 171323807.

It is an arithmetic number, because the mean of its divisors is an integer number (256985709).

Almost surely, 2^685295222 is an apocalyptic number.

685295222 is a deficient number, since it is larger than the sum of its proper divisors (342647614).

685295222 is a wasteful number, since it uses less digits than its factorization.

685295222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342647613.

The product of its digits is 172800, while the sum is 41.

The square root of 685295222 is about 26178.1439754617. The cubic root of 685295222 is about 881.6426026469.

The spelling of 685295222 in words is "six hundred eighty-five million, two hundred ninety-five thousand, two hundred twenty-two".