678177948 has 96 divisors (see below), whose sum is σ = 1881427968. Its totient is φ = 186048000.

The previous prime is 678177911. The next prime is 678177971. The reversal of 678177948 is 849771876.

It is a happy 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 in 31 ways as a sum of consecutive naturals, for example, 355798 + ... + 357698.

It is an arithmetic number, because the mean of its divisors is an integer number (19598208).

Almost surely, 2^678177948 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 678177948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (940713984).

678177948 is an abundant number, since it is smaller than the sum of its proper divisors (1203250020).

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

678177948 is a wasteful number, since it uses less digits than its factorization.

678177948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083 (or 2081 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 57.

The square root of 678177948 is about 26041.8499342885. The cubic root of 678177948 is about 878.5798149885.

The spelling of 678177948 in words is "six hundred seventy-eight million, one hundred seventy-seven thousand, nine hundred forty-eight".