689556048 has 40 divisors (see below), whose sum is σ = 1782900768. Its totient is φ = 229652352.

The previous prime is 689556001. The next prime is 689556061. The reversal of 689556048 is 840655986.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55986 + ... + 67182.

Almost surely, 2^689556048 is an apocalyptic number.

It is an amenable number.

689556048 is an abundant number, since it is smaller than the sum of its proper divisors (1093344720).

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

689556048 is a wasteful number, since it uses less digits than its factorization.

689556048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12491 (or 12485 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 51.

The square root of 689556048 is about 26259.3992315133. The cubic root of 689556048 is about 883.4660343495.

The spelling of 689556048 in words is "six hundred eighty-nine million, five hundred fifty-six thousand, forty-eight".