689753318 has 4 divisors (see below), whose sum is σ = 1034629980. Its totient is φ = 344876658.

The previous prime is 689753269. The next prime is 689753321. The reversal of 689753318 is 813357986.

It is a happy number.

689753318 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172438328 + ... + 172438331.

It is an arithmetic number, because the mean of its divisors is an integer number (258657495).

Almost surely, 2^689753318 is an apocalyptic number.

689753318 is a deficient number, since it is larger than the sum of its proper divisors (344876662).

689753318 is a wasteful number, since it uses less digits than its factorization.

689753318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344876661.

The product of its digits is 1088640, while the sum is 50.

The square root of 689753318 is about 26263.1551417571. The cubic root of 689753318 is about 883.5502744090.

The spelling of 689753318 in words is "six hundred eighty-nine million, seven hundred fifty-three thousand, three hundred eighteen".