689480924 has 12 divisors (see below), whose sum is σ = 1316281848. Its totient is φ = 313400400.

The previous prime is 689480921. The next prime is 689480933. The reversal of 689480924 is 429084986.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689480921) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7834967 + ... + 7835054.

It is an arithmetic number, because the mean of its divisors is an integer number (109690154).

Almost surely, 2^689480924 is an apocalyptic number.

It is an amenable number.

689480924 is a deficient number, since it is larger than the sum of its proper divisors (626800924).

689480924 is a wasteful number, since it uses less digits than its factorization.

689480924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15670036 (or 15670034 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 50.

The square root of 689480924 is about 26257.9687714035. The cubic root of 689480924 is about 883.4339499802.

The spelling of 689480924 in words is "six hundred eighty-nine million, four hundred eighty thousand, nine hundred twenty-four".