689271306 has 16 divisors (see below), whose sum is σ = 1380569184. Its totient is φ = 229419344.

The previous prime is 689271301. The next prime is 689271311. The reversal of 689271306 is 603172986.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (689271301) and next prime (689271311).

It is not an unprimeable number, because it can be changed into a prime (689271301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80001 + ... + 88196.

It is an arithmetic number, because the mean of its divisors is an integer number (86285574).

Almost surely, 2^689271306 is an apocalyptic number.

689271306 is an abundant number, since it is smaller than the sum of its proper divisors (691297878).

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

689271306 is a wasteful number, since it uses less digits than its factorization.

689271306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168885.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 689271306 is about 26253.9769558823. The cubic root of 689271306 is about 883.3444128510.

The spelling of 689271306 in words is "six hundred eighty-nine million, two hundred seventy-one thousand, three hundred six".