684342211 has 8 divisors (see below), whose sum is σ = 783915104. Its totient is φ = 585221760.

The previous prime is 684342181. The next prime is 684342229. The reversal of 684342211 is 112243486.

684342211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 684342211 - 2⁷ = 684342083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (684342511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109860 + ... + 115921.

It is an arithmetic number, because the mean of its divisors is an integer number (97989388).

Almost surely, 2^684342211 is an apocalyptic number.

684342211 is a deficient number, since it is larger than the sum of its proper divisors (99572893).

684342211 is a wasteful number, since it uses less digits than its factorization.

684342211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226221.

The product of its digits is 9216, while the sum is 31.

The square root of 684342211 is about 26159.9352254550. The cubic root of 684342211 is about 881.2337253940.

Adding to 684342211 its reverse (112243486), we get a palindrome (796585697).

The spelling of 684342211 in words is "six hundred eighty-four million, three hundred forty-two thousand, two hundred eleven".