689315996 has 24 divisors (see below), whose sum is σ = 1238073984. Its totient is φ = 335698160.

The previous prime is 689315989. The next prime is 689316037. The reversal of 689315996 is 699513986.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8951 + ... + 38193.

It is an arithmetic number, because the mean of its divisors is an integer number (51586416).

Almost surely, 2^689315996 is an apocalyptic number.

It is an amenable number.

689315996 is a deficient number, since it is larger than the sum of its proper divisors (548757988).

689315996 is a wasteful number, since it uses less digits than its factorization.

689315996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29401 (or 29399 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 56.

The square root of 689315996 is about 26254.8280512366. The cubic root of 689315996 is about 883.3635034512.

The spelling of 689315996 in words is "six hundred eighty-nine million, three hundred fifteen thousand, nine hundred ninety-six".