689097 has 4 divisors (see below), whose sum is σ = 918800. Its totient is φ = 459396.

The previous prime is 689093. The next prime is 689107. The reversal of 689097 is 790986.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 689097 - 2² = 689093 is a prime.

It is a D-number.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 114847 + ... + 114852.

It is an arithmetic number, because the mean of its divisors is an integer number (229700).

2⁶⁸⁹⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

689097 is a deficient number, since it is larger than the sum of its proper divisors (229703).

689097 is a wasteful number, since it uses less digits than its factorization.

689097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229702.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 689097 is about 830.1186662159. The cubic root of 689097 is about 88.3269945216.

The spelling of 689097 in words is "six hundred eighty-nine thousand, ninety-seven".