689323212 has 36 divisors (see below), whose sum is σ = 1744194816. Its totient is φ = 229545120.

The previous prime is 689323207. The next prime is 689323231. The reversal of 689323212 is 212323986.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29173 + ... + 47219.

It is an arithmetic number, because the mean of its divisors is an integer number (48449856).

Almost surely, 2^689323212 is an apocalyptic number.

It is an amenable number.

689323212 is an abundant number, since it is smaller than the sum of its proper divisors (1054871604).

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

689323212 is a wasteful number, since it uses less digits than its factorization.

689323212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19118 (or 19113 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 689323212 is about 26254.9654732205. The cubic root of 689323212 is about 883.3665858927.

The spelling of 689323212 in words is "six hundred eighty-nine million, three hundred twenty-three thousand, two hundred twelve".