689073499 has 4 divisors (see below), whose sum is σ = 698512936. Its totient is φ = 679634064.

The previous prime is 689073443. The next prime is 689073503. The reversal of 689073499 is 994370986.

689073499 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.

It is a cyclic number.

It is not a de Polignac number, because 689073499 - 2¹¹ = 689071451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689073419) 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, 4719609 + ... + 4719754.

It is an arithmetic number, because the mean of its divisors is an integer number (174628234).

Almost surely, 2^689073499 is an apocalyptic number.

689073499 is a deficient number, since it is larger than the sum of its proper divisors (9439437).

689073499 is an equidigital number, since it uses as much as digits as its factorization.

689073499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9439436.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The square root of 689073499 is about 26250.2095039259. The cubic root of 689073499 is about 883.2599040738.

The spelling of 689073499 in words is "six hundred eighty-nine million, seventy-three thousand, four hundred ninety-nine".