689351080 has 64 divisors (see below), whose sum is σ = 1696697280. Its totient is φ = 249984000.

The previous prime is 689351063. The next prime is 689351099. The reversal of 689351080 is 80153986.

It is a happy number.

It is a super-2 number, since 2×689351080² = 950409822994332800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

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 15 ways as a sum of consecutive naturals, for example, 174487 + ... + 178393.

It is an arithmetic number, because the mean of its divisors is an integer number (26510895).

Almost surely, 2^689351080 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 689351080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (848348640).

689351080 is an abundant number, since it is smaller than the sum of its proper divisors (1007346200).

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

689351080 is a wasteful number, since it uses less digits than its factorization.

689351080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4330 (or 4326 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 689351080 is about 26255.4961865130. The cubic root of 689351080 is about 883.3784899980.

The spelling of 689351080 in words is "six hundred eighty-nine million, three hundred fifty-one thousand, eighty".