678890676 has 12 divisors (see below), whose sum is σ = 1584078272. Its totient is φ = 226296888.

The previous prime is 678890657. The next prime is 678890677. The reversal of 678890676 is 676098876.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678890677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28287100 + ... + 28287123.

Almost surely, 2^678890676 is an apocalyptic number.

It is an amenable number.

678890676 is an abundant number, since it is smaller than the sum of its proper divisors (905187596).

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

678890676 is a wasteful number, since it uses less digits than its factorization.

678890676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56574230 (or 56574228 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 57.

The square root of 678890676 is about 26055.5306221155. The cubic root of 678890676 is about 878.8874870387.

The spelling of 678890676 in words is "six hundred seventy-eight million, eight hundred ninety thousand, six hundred seventy-six".