689604000 has 96 divisors (see below), whose sum is σ = 2259182016. Its totient is φ = 183891200.

The previous prime is 689603987. The next prime is 689604001. The reversal of 689604000 is 406986.

689604000 = T₃₂₅₉ + T₃₂₆₀ + ... + T₃₃₈₃.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (689604001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16734 + ... + 40733.

It is an arithmetic number, because the mean of its divisors is an integer number (23533146).

Almost surely, 2^689604000 is an apocalyptic number.

689604000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

689604000 is an abundant number, since it is smaller than the sum of its proper divisors (1569578016).

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

689604000 is a wasteful number, since it uses less digits than its factorization.

689604000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57495 (or 57477 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 689604000 is about 26260.3122601389. The cubic root of 689604000 is about 883.4865127338.

The spelling of 689604000 in words is "six hundred eighty-nine million, six hundred four thousand".