678953106 has 144 divisors (see below), whose sum is σ = 1777969440. Its totient is φ = 186001920.

The previous prime is 678953059. The next prime is 678953113. The reversal of 678953106 is 601359876.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 982221 + ... + 982911.

It is an arithmetic number, because the mean of its divisors is an integer number (12347010).

Almost surely, 2^678953106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678953106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (888984720).

678953106 is an abundant number, since it is smaller than the sum of its proper divisors (1099016334).

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

678953106 is a wasteful number, since it uses less digits than its factorization.

678953106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 678953106 is about 26056.7286127787. The cubic root of 678953106 is about 878.9144267046.

It can be divided in two parts, 6789 and 53106, that added together give a palindrome (59895).

The spelling of 678953106 in words is "six hundred seventy-eight million, nine hundred fifty-three thousand, one hundred six".