689206233 has 4 divisors (see below), whose sum is σ = 918941648. Its totient is φ = 459470820.

The previous prime is 689206211. The next prime is 689206249. The reversal of 689206233 is 332602986.

689206233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 689206233 - 2¹⁸ = 688944089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 689206191 and 689206200.

It is not an unprimeable number, because it can be changed into a prime (689206933) 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, 114867703 + ... + 114867708.

It is an arithmetic number, because the mean of its divisors is an integer number (229735412).

Almost surely, 2^689206233 is an apocalyptic number.

It is an amenable number.

689206233 is a deficient number, since it is larger than the sum of its proper divisors (229735415).

689206233 is a wasteful number, since it uses less digits than its factorization.

689206233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229735414.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 689206233 is about 26252.7376286741. The cubic root of 689206233 is about 883.3166135991.

The spelling of 689206233 in words is "six hundred eighty-nine million, two hundred six thousand, two hundred thirty-three".