678597696 has 112 divisors (see below), whose sum is σ = 2279985280. Its totient is φ = 193881600.

The previous prime is 678597679. The next prime is 678597701. The reversal of 678597696 is 696795876.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 15955 + ... + 40146.

Almost surely, 2^678597696 is an apocalyptic number.

It is an amenable number.

678597696 is an abundant number, since it is smaller than the sum of its proper divisors (1601387584).

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

678597696 is a wasteful number, since it uses less digits than its factorization.

678597696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56129 (or 56113 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 63.

The square root of 678597696 is about 26049.9077925431. The cubic root of 678597696 is about 878.7610388415.

The spelling of 678597696 in words is "six hundred seventy-eight million, five hundred ninety-seven thousand, six hundred ninety-six".