689604597000 has 384 divisors, whose sum is σ = 2636946748800. Its totient is φ = 167176224000.

The previous prime is 689604596977. The next prime is 689604597007. The reversal of 689604597000 is 795406986.

689604597000 is a `hidden beast` number, since 68 + 9 + 60 + 459 + 70 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (689604597007) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2544006 + ... + 2801994.

It is an arithmetic number, because the mean of its divisors is an integer number (6867048825).

Almost surely, 2^689604597000 is an apocalyptic number.

689604597000 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 689604597000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1318473374400).

689604597000 is an abundant number, since it is smaller than the sum of its proper divisors (1947342151800).

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

689604597000 is a wasteful number, since it uses less digits than its factorization.

689604597000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258036 (or 258010 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 689604597000 in words is "six hundred eighty-nine billion, six hundred four million, five hundred ninety-seven thousand".