678075845 has 8 divisors (see below), whose sum is σ = 825836064. Its totient is φ = 534363984.

The previous prime is 678075833. The next prime is 678075847. The reversal of 678075845 is 548570876.

678075845 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 678075845 - 2²⁰ = 677027269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 678075793 and 678075802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678075847) 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, 1011719 + ... + 1012388.

It is an arithmetic number, because the mean of its divisors is an integer number (103229508).

Almost surely, 2^678075845 is an apocalyptic number.

It is an amenable number.

678075845 is a deficient number, since it is larger than the sum of its proper divisors (147760219).

678075845 is a wasteful number, since it uses less digits than its factorization.

678075845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024179.

The product of its (nonzero) digits is 1881600, while the sum is 50.

The square root of 678075845 is about 26039.8894966933. The cubic root of 678075845 is about 878.5357212825.

The spelling of 678075845 in words is "six hundred seventy-eight million, seventy-five thousand, eight hundred forty-five".