676449984 has 224 divisors, whose sum is σ = 2144751616. Its totient is φ = 184135680.

The previous prime is 676449959. The next prime is 676450003. The reversal of 676449984 is 489944676.

It is a tau number, because it is divible by the number of its divisors (224).

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, 3033297 + ... + 3033519.

It is an arithmetic number, because the mean of its divisors is an integer number (9574784).

Almost surely, 2^676449984 is an apocalyptic number.

676449984 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 676449984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1072375808).

676449984 is an abundant number, since it is smaller than the sum of its proper divisors (1468301632).

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

676449984 is a wasteful number, since it uses less digits than its factorization.

676449984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 333 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 57.

The square root of 676449984 is about 26008.6520988689. The cubic root of 676449984 is about 877.8329876411.

The spelling of 676449984 in words is "six hundred seventy-six million, four hundred forty-nine thousand, nine hundred eighty-four".