689230080 has 864 divisors, whose sum is σ = 3187658880. Its totient is φ = 139345920.

The previous prime is 689230079. The next prime is 689230103. The reversal of 689230080 is 80032986.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18627822 + ... + 18627858.

It is an arithmetic number, because the mean of its divisors is an integer number (3689420).

Almost surely, 2^689230080 is an apocalyptic number.

689230080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689230080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1593829440).

689230080 is an abundant number, since it is smaller than the sum of its proper divisors (2498428800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689230080 is a wasteful number, since it uses less digits than its factorization.

689230080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 689230080 is about 26253.1918059500. The cubic root of 689230080 is about 883.3268012649.

The spelling of 689230080 in words is "six hundred eighty-nine million, two hundred thirty thousand, eighty".