677898368 has 128 divisors (see below), whose sum is σ = 1598707200. Its totient is φ = 280350720.

The previous prime is 677898337. The next prime is 677898401. The reversal of 677898368 is 863898776.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 677898368.

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, 4317746 + ... + 4317902.

It is an arithmetic number, because the mean of its divisors is an integer number (12489900).

Almost surely, 2^677898368 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 677898368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (799353600).

677898368 is an abundant number, since it is smaller than the sum of its proper divisors (920808832).

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

677898368 is a wasteful number, since it uses less digits than its factorization.

677898368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 306 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 62.

The square root of 677898368 is about 26036.4814827196. The cubic root of 677898368 is about 878.4590663917.

The spelling of 677898368 in words is "six hundred seventy-seven million, eight hundred ninety-eight thousand, three hundred sixty-eight".