678473846 has 4 divisors (see below), whose sum is σ = 1017710772. Its totient is φ = 339236922.

The previous prime is 678473827. The next prime is 678473857. The reversal of 678473846 is 648374876.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169618460 + ... + 169618463.

It is an arithmetic number, because the mean of its divisors is an integer number (254427693).

Almost surely, 2^678473846 is an apocalyptic number.

678473846 is a deficient number, since it is larger than the sum of its proper divisors (339236926).

678473846 is a wasteful number, since it uses less digits than its factorization.

678473846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339236925.

The product of its digits is 5419008, while the sum is 53.

The square root of 678473846 is about 26047.5305163465. The cubic root of 678473846 is about 878.7075750700.

The spelling of 678473846 in words is "six hundred seventy-eight million, four hundred seventy-three thousand, eight hundred forty-six".