684941711 has 6 divisors (see below), whose sum is σ = 701242920. Its totient is φ = 669011028.

The previous prime is 684941707. The next prime is 684941717. The reversal of 684941711 is 117149486.

684941711 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 684941711 - 2² = 684941707 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684941717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 183371 + ... + 187068.

It is an arithmetic number, because the mean of its divisors is an integer number (116873820).

Almost surely, 2^684941711 is an apocalyptic number.

684941711 is a deficient number, since it is larger than the sum of its proper divisors (16301209).

684941711 is an equidigital number, since it uses as much as digits as its factorization.

684941711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370525 (or 370482 counting only the distinct ones).

The product of its digits is 48384, while the sum is 41.

The square root of 684941711 is about 26171.3910788097. The cubic root of 684941711 is about 881.4909775004.

The spelling of 684941711 in words is "six hundred eighty-four million, nine hundred forty-one thousand, seven hundred eleven".