689413712 has 60 divisors (see below), whose sum is σ = 1486818900. Its totient is φ = 307837440.

The previous prime is 689413693. The next prime is 689413717. The reversal of 689413712 is 217314986.

It can be written as a sum of positive squares in 2 ways, for example, as 36917776 + 652495936 = 6076^2 + 25544^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 689413712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689413717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198164 + ... + 201612.

It is an arithmetic number, because the mean of its divisors is an integer number (24780315).

Almost surely, 2^689413712 is an apocalyptic number.

689413712 is a gapful number since it is divisible by the number (62) 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 689413712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (743409450).

689413712 is an abundant number, since it is smaller than the sum of its proper divisors (797405188).

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

689413712 is a wasteful number, since it uses less digits than its factorization.

689413712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3532 (or 3495 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 689413712 is about 26256.6889001641. The cubic root of 689413712 is about 883.4052427358.

The spelling of 689413712 in words is "six hundred eighty-nine million, four hundred thirteen thousand, seven hundred twelve".