685214214 has 32 divisors (see below), whose sum is σ = 1443847680. Its totient is φ = 216189792.

The previous prime is 685214209. The next prime is 685214249. The reversal of 685214214 is 412412586.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178564 + ... + 182360.

It is an arithmetic number, because the mean of its divisors is an integer number (45120240).

Almost surely, 2^685214214 is an apocalyptic number.

685214214 is an abundant number, since it is smaller than the sum of its proper divisors (758633466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685214214 is a wasteful number, since it uses less digits than its factorization.

685214214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5404.

The product of its digits is 15360, while the sum is 33.

The square root of 685214214 is about 26176.5966848252. The cubic root of 685214214 is about 881.6078619415.

The spelling of 685214214 in words is "six hundred eighty-five million, two hundred fourteen thousand, two hundred fourteen".