688553016 has 64 divisors (see below), whose sum is σ = 1774997280. Its totient is φ = 222443520.

The previous prime is 688552993. The next prime is 688553029. The reversal of 688553016 is 610355886.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 152260 + ... + 156716.

Almost surely, 2^688553016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 688553016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (887498640).

688553016 is an abundant number, since it is smaller than the sum of its proper divisors (1086444264).

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

688553016 is a wasteful number, since it uses less digits than its factorization.

688553016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664 (or 4660 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 688553016 is about 26240.2937483558. The cubic root of 688553016 is about 883.0374616385.

The spelling of 688553016 in words is "six hundred eighty-eight million, five hundred fifty-three thousand, sixteen".