689561476 has 12 divisors (see below), whose sum is σ = 1207982160. Its totient is φ = 344423720.

The previous prime is 689561461. The next prime is 689561503. The reversal of 689561476 is 674165986.

689561476 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84886 + ... + 92653.

It is an arithmetic number, because the mean of its divisors is an integer number (100665180).

Almost surely, 2^689561476 is an apocalyptic number.

It is an amenable number.

689561476 is a deficient number, since it is larger than the sum of its proper divisors (518420684).

689561476 is a wasteful number, since it uses less digits than its factorization.

689561476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178514 (or 178512 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The square root of 689561476 is about 26259.5025847787. The cubic root of 689561476 is about 883.4683524792.

The spelling of 689561476 in words is "six hundred eighty-nine million, five hundred sixty-one thousand, four hundred seventy-six".