678530496 has 112 divisors (see below), whose sum is σ = 2058497280. Its totient is φ = 193228800.

The previous prime is 678530483. The next prime is 678530533. The reversal of 678530496 is 694035876.

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 (48).

It is a congruent number.

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, 538315 + ... + 539573.

It is an arithmetic number, because the mean of its divisors is an integer number (18379440).

Almost surely, 2^678530496 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 678530496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1029248640).

678530496 is an abundant number, since it is smaller than the sum of its proper divisors (1379966784).

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

678530496 is a wasteful number, since it uses less digits than its factorization.

678530496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682 (or 1672 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The square root of 678530496 is about 26048.6179287885. The cubic root of 678530496 is about 878.7320306424.

The spelling of 678530496 in words is "six hundred seventy-eight million, five hundred thirty thousand, four hundred ninety-six".