689097117 has 8 divisors (see below), whose sum is σ = 921112096. Its totient is φ = 458240112.

The previous prime is 689097113. The next prime is 689097119. The reversal of 689097117 is 711790986.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 689097117 - 2² = 689097113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689097113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288103 + ... + 290484.

It is an arithmetic number, because the mean of its divisors is an integer number (115139012).

Almost surely, 2^689097117 is an apocalyptic number.

It is an amenable number.

689097117 is a deficient number, since it is larger than the sum of its proper divisors (232014979).

689097117 is a wasteful number, since it uses less digits than its factorization.

689097117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578987.

The product of its (nonzero) digits is 190512, while the sum is 48.

The square root of 689097117 is about 26250.6593631474. The cubic root of 689097117 is about 883.2699952054.

The spelling of 689097117 in words is "six hundred eighty-nine million, ninety-seven thousand, one hundred seventeen".