678473712 has 80 divisors (see below), whose sum is σ = 2225690880. Its totient is φ = 193848768.

The previous prime is 678473693. The next prime is 678473729. The reversal of 678473712 is 217374876.

678473712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109158 + ... + 115205.

It is an arithmetic number, because the mean of its divisors is an integer number (27821136).

Almost surely, 2^678473712 is an apocalyptic number.

It is an amenable number.

678473712 is an abundant number, since it is smaller than the sum of its proper divisors (1547217168).

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

678473712 is a wasteful number, since it uses less digits than its factorization.

678473712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224387 (or 224375 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 678473712 is about 26047.5279441255. The cubic root of 678473712 is about 878.7075172211.

The spelling of 678473712 in words is "six hundred seventy-eight million, four hundred seventy-three thousand, seven hundred twelve".