678379143 has 8 divisors (see below), whose sum is σ = 974082928. Its totient is φ = 417464064.

The previous prime is 678379139. The next prime is 678379151. The reversal of 678379143 is 341973876.

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

It is not a de Polignac number, because 678379143 - 2² = 678379139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 678379092 and 678379101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678379183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8697130 + ... + 8697207.

It is an arithmetic number, because the mean of its divisors is an integer number (121760366).

Almost surely, 2^678379143 is an apocalyptic number.

678379143 is a deficient number, since it is larger than the sum of its proper divisors (295703785).

678379143 is a wasteful number, since it uses less digits than its factorization.

678379143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17394353.

The product of its digits is 762048, while the sum is 48.

The square root of 678379143 is about 26045.7125646430. The cubic root of 678379143 is about 878.6666891336. Note that the first 4 decimals are identical.

The spelling of 678379143 in words is "six hundred seventy-eight million, three hundred seventy-nine thousand, one hundred forty-three".