698668 has 24 divisors (see below), whose sum is σ = 1335600. Its totient is φ = 318528.

The previous prime is 698653. The next prime is 698669. The reversal of 698668 is 866896.

It is not an unprimeable number, because it can be changed into a prime (698669) by changing a digit.

698668 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 7 ways as a sum of consecutive naturals, for example, 2046 + ... + 2362.

It is an arithmetic number, because the mean of its divisors is an integer number (55650).

2⁶⁹⁸⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

698668 is a deficient number, since it is larger than the sum of its proper divisors (636932).

698668 is a wasteful number, since it uses less digits than its factorization.

698668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 367 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 698668 is about 835.8636252404. The cubic root of 698668 is about 88.7340459320.

The spelling of 698668 in words is "six hundred ninety-eight thousand, six hundred sixty-eight".