678361872 has 40 divisors (see below), whose sum is σ = 1753437376. Its totient is φ = 225991296.

The previous prime is 678361843. The next prime is 678361889. The reversal of 678361872 is 278163876.

678361872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119973 + ... + 125499.

Almost surely, 2^678361872 is an apocalyptic number.

It is an amenable number.

678361872 is an abundant number, since it is smaller than the sum of its proper divisors (1075075504).

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

678361872 is a wasteful number, since it uses less digits than its factorization.

678361872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8095 (or 8089 counting only the distinct ones).

The product of its digits is 677376, while the sum is 48.

The square root of 678361872 is about 26045.3810108434. The cubic root of 678361872 is about 878.6592323491.

The spelling of 678361872 in words is "six hundred seventy-eight million, three hundred sixty-one thousand, eight hundred seventy-two".