689359244 has 18 divisors (see below), whose sum is σ = 1403338860. Its totient is φ = 295439592.

The previous prime is 689359213. The next prime is 689359267. The reversal of 689359244 is 442953986.

It is a junction number, because it is equal to n+sod(n) for n = 689359192 and 689359201.

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 5 ways as a sum of consecutive naturals, for example, 1758374 + ... + 1758765.

It is an arithmetic number, because the mean of its divisors is an integer number (77963270).

Almost surely, 2^689359244 is an apocalyptic number.

It is an amenable number.

689359244 is an abundant number, since it is smaller than the sum of its proper divisors (713979616).

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

689359244 is a wasteful number, since it uses less digits than its factorization.

689359244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517157 (or 3517148 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 50.

The square root of 689359244 is about 26255.6516582621. The cubic root of 689359244 is about 883.3819772745.

The spelling of 689359244 in words is "six hundred eighty-nine million, three hundred fifty-nine thousand, two hundred forty-four".