689093568 has 168 divisors, whose sum is σ = 2085807360. Its totient is φ = 225504000.

The previous prime is 689093507. The next prime is 689093579. The reversal of 689093568 is 865390986.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is an unprimeable number.

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, 917193 + ... + 917943.

It is an arithmetic number, because the mean of its divisors is an integer number (12415520).

Almost surely, 2^689093568 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 689093568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1042903680).

689093568 is an abundant number, since it is smaller than the sum of its proper divisors (1396713792).

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

689093568 is an equidigital number, since it uses as much as digits as its factorization.

689093568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 689093568 is about 26250.5917647584. The cubic root of 689093568 is about 883.2684788586.

The spelling of 689093568 in words is "six hundred eighty-nine million, ninety-three thousand, five hundred sixty-eight".