689725000 has 96 divisors (see below), whose sum is σ = 1653644160. Its totient is φ = 269560000.

The previous prime is 689724967. The next prime is 689725007. The reversal of 689725000 is 527986.

It is not an unprimeable number, because it can be changed into a prime (689725007) 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 23 ways as a sum of consecutive naturals, for example, 1174707 + ... + 1175293.

It is an arithmetic number, because the mean of its divisors is an integer number (17225460).

Almost surely, 2^689725000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689725000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (826822080).

689725000 is an abundant number, since it is smaller than the sum of its proper divisors (963919160).

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

689725000 is an equidigital number, since it uses as much as digits as its factorization.

689725000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 689725000 is about 26262.6160159265. The cubic root of 689725000 is about 883.5381827822.

The spelling of 689725000 in words is "six hundred eighty-nine million, seven hundred twenty-five thousand".