678221060 has 96 divisors (see below), whose sum is σ = 1587890304. Its totient is φ = 241280000.

The previous prime is 678221059. The next prime is 678221077. The reversal of 678221060 is 60122876.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2910704 + ... + 2910936.

It is an arithmetic number, because the mean of its divisors is an integer number (16540524).

Almost surely, 2^678221060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678221060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (793945152).

678221060 is an abundant number, since it is smaller than the sum of its proper divisors (909669244).

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

678221060 is a wasteful number, since it uses less digits than its factorization.

678221060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 678221060 is about 26042.6776657086. The cubic root of 678221060 is about 878.5984317986.

The spelling of 678221060 in words is "six hundred seventy-eight million, two hundred twenty-one thousand, sixty".