679698 has 32 divisors (see below), whose sum is σ = 1552320. Its totient is φ = 220320.

The previous prime is 679691. The next prime is 679699. The reversal of 679698 is 896976.

679698 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (679691) by changing a digit.

679698 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2061 + ... + 2367.

It is an arithmetic number, because the mean of its divisors is an integer number (48510).

2⁶⁷⁹⁶⁹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679698, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776160).

679698 is an abundant number, since it is smaller than the sum of its proper divisors (872622).

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

679698 is a wasteful number, since it uses less digits than its factorization.

679698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 353 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 679698 is about 824.4379903910. The cubic root of 679698 is about 87.9235734512.

The spelling of 679698 in words is "six hundred seventy-nine thousand, six hundred ninety-eight".