678304346 has 8 divisors (see below), whose sum is σ = 1017649920. Its totient is φ = 339087708.

The previous prime is 678304321. The next prime is 678304391. The reversal of 678304346 is 643403876.

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

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, 17786 + ... + 40901.

It is an arithmetic number, because the mean of its divisors is an integer number (127206240).

Almost surely, 2^678304346 is an apocalyptic number.

678304346 is a deficient number, since it is larger than the sum of its proper divisors (339345574).

678304346 is a wasteful number, since it uses less digits than its factorization.

678304346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64468.

The product of its (nonzero) digits is 290304, while the sum is 41.

The square root of 678304346 is about 26044.2766457431. The cubic root of 678304346 is about 878.6343944850.

The spelling of 678304346 in words is "six hundred seventy-eight million, three hundred four thousand, three hundred forty-six".