689673241 has 4 divisors (see below), whose sum is σ = 689846400. Its totient is φ = 689500084.

The previous prime is 689673233. The next prime is 689673251. The reversal of 689673241 is 142376986.

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 a cyclic number.

It is not a de Polignac number, because 689673241 - 2³ = 689673233 is a prime.

It is a super-3 number, since 3×689673241³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 689673191 and 689673200.

It is not an unprimeable number, because it can be changed into a prime (689673251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80461 + ... + 88618.

It is an arithmetic number, because the mean of its divisors is an integer number (172461600).

Almost surely, 2^689673241 is an apocalyptic number.

It is an amenable number.

689673241 is a deficient number, since it is larger than the sum of its proper divisors (173159).

689673241 is a wasteful number, since it uses less digits than its factorization.

689673241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173158.

The product of its digits is 435456, while the sum is 46.

The square root of 689673241 is about 26261.6305853235. The cubic root of 689673241 is about 883.5160811249.

The spelling of 689673241 in words is "six hundred eighty-nine million, six hundred seventy-three thousand, two hundred forty-one".