689329199 has 6 divisors (see below), whose sum is σ = 746433576. Its totient is φ = 636303720.

The previous prime is 689329153. The next prime is 689329229. The reversal of 689329199 is 991923986.

It is not a de Polignac number, because 689329199 - 2¹² = 689325103 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 (689329099) 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, 2039267 + ... + 2039604.

It is an arithmetic number, because the mean of its divisors is an integer number (124405596).

Almost surely, 2^689329199 is an apocalyptic number.

689329199 is a deficient number, since it is larger than the sum of its proper divisors (57104377).

689329199 is a wasteful number, since it uses less digits than its factorization.

689329199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078897 (or 4078884 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 56.

The square root of 689329199 is about 26255.0794895007. The cubic root of 689329199 is about 883.3691433289.

The spelling of 689329199 in words is "six hundred eighty-nine million, three hundred twenty-nine thousand, one hundred ninety-nine".