678414414 has 8 divisors (see below), whose sum is σ = 1356828840. Its totient is φ = 226138136.

The previous prime is 678414409. The next prime is 678414421. The reversal of 678414414 is 414414876.

678414414 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.

678414414 is an admirable number.

It is a super-2 number, since 2×678414414² = 920492234245926792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56534529 + ... + 56534540.

It is an arithmetic number, because the mean of its divisors is an integer number (169603605).

Almost surely, 2^678414414 is an apocalyptic number.

678414414 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

678414414 is a wasteful number, since it uses less digits than its factorization.

678414414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113069074.

The product of its digits is 86016, while the sum is 39.

The square root of 678414414 is about 26046.3896538465. The cubic root of 678414414 is about 878.6819170564.

The spelling of 678414414 in words is "six hundred seventy-eight million, four hundred fourteen thousand, four hundred fourteen".