678499976 has 64 divisors (see below), whose sum is σ = 1637314560. Its totient is φ = 255816000.

The previous prime is 678499973. The next prime is 678499981. The reversal of 678499976 is 679994876.

It is not an unprimeable number, because it can be changed into a prime (678499973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1331 + ... + 36861.

It is an arithmetic number, because the mean of its divisors is an integer number (25583040).

Almost surely, 2^678499976 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 678499976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (818657280).

678499976 is an abundant number, since it is smaller than the sum of its proper divisors (958814584).

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

678499976 is a wasteful number, since it uses less digits than its factorization.

678499976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35586 (or 35582 counting only the distinct ones).

The product of its digits is 41150592, while the sum is 65.

The square root of 678499976 is about 26048.0320945748. The cubic root of 678499976 is about 878.7188554528.

The spelling of 678499976 in words is "six hundred seventy-eight million, four hundred ninety-nine thousand, nine hundred seventy-six".