678383719 has 8 divisors (see below), whose sum is σ = 732562880. Its totient is φ = 624489696.

The previous prime is 678383707. The next prime is 678383723. The reversal of 678383719 is 917383876.

It is a happy number.

678383719 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 678383719 - 2⁷ = 678383591 is a prime.

It is a super-2 number, since 2×678383719² = 920408940408541922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678383749) 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, 66324 + ... + 75865.

It is an arithmetic number, because the mean of its divisors is an integer number (91570360).

Almost surely, 2^678383719 is an apocalyptic number.

678383719 is a deficient number, since it is larger than the sum of its proper divisors (54179161).

678383719 is a wasteful number, since it uses less digits than its factorization.

678383719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142569.

The product of its digits is 1524096, while the sum is 52.

The square root of 678383719 is about 26045.8004100469. The cubic root of 678383719 is about 878.6686648084.

The spelling of 678383719 in words is "six hundred seventy-eight million, three hundred eighty-three thousand, seven hundred nineteen".