689098 has 12 divisors (see below), whose sum is σ = 1079190. Its totient is φ = 329616.

The previous prime is 689093. The next prime is 689107. The reversal of 689098 is 890986.

It is a happy number.

689098 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in 3 ways, for example, as 667489 + 21609 = 817^2 + 147^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 689098.

It is not an unprimeable number, because it can be changed into a prime (689093) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6268 + ... + 6376.

2⁶⁸⁹⁰⁹⁸ is an apocalyptic number.

689098 is a deficient number, since it is larger than the sum of its proper divisors (390092).

689098 is a wasteful number, since it uses less digits than its factorization.

689098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 689098 is about 830.1192685392. The cubic root of 689098 is about 88.3270372475.

The spelling of 689098 in words is "six hundred eighty-nine thousand, ninety-eight".