678434713 has 8 divisors (see below), whose sum is σ = 743345280. Its totient is φ = 614063280.

The previous prime is 678434689. The next prime is 678434723. The reversal of 678434713 is 317434876.

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 678434713 - 2⁹ = 678434201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 678434713.

It is not an unprimeable number, because it can be changed into a prime (678434723) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 132145 + ... + 137182.

It is an arithmetic number, because the mean of its divisors is an integer number (92918160).

Almost surely, 2^678434713 is an apocalyptic number.

It is an amenable number.

678434713 is a deficient number, since it is larger than the sum of its proper divisors (64910567).

678434713 is a wasteful number, since it uses less digits than its factorization.

678434713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269567.

The product of its digits is 338688, while the sum is 43.

The square root of 678434713 is about 26046.7793210600. The cubic root of 678434713 is about 878.6906807196.

The spelling of 678434713 in words is "six hundred seventy-eight million, four hundred thirty-four thousand, seven hundred thirteen".