678498696 has 96 divisors (see below), whose sum is σ = 1951503840. Its totient is φ = 212227584.

The previous prime is 678498647. The next prime is 678498701. The reversal of 678498696 is 696894876.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 571015 + ... + 572201.

It is an arithmetic number, because the mean of its divisors is an integer number (20328165).

Almost surely, 2^678498696 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 678498696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (975751920).

678498696 is an abundant number, since it is smaller than the sum of its proper divisors (1273005144).

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

678498696 is a wasteful number, since it uses less digits than its factorization.

678498696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683 (or 1676 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The square root of 678498696 is about 26048.0075245689. The cubic root of 678498696 is about 878.7183028805.

The spelling of 678498696 in words is "six hundred seventy-eight million, four hundred ninety-eight thousand, six hundred ninety-six".