689480288 has 48 divisors (see below), whose sum is σ = 1642594464. Its totient is φ = 278108160.

The previous prime is 689480261. The next prime is 689480293. The reversal of 689480288 is 882084986.

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, 86723 + ... + 94338.

It is an arithmetic number, because the mean of its divisors is an integer number (34220718).

Almost surely, 2^689480288 is an apocalyptic number.

689480288 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

689480288 is an abundant number, since it is smaller than the sum of its proper divisors (953114176).

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

689480288 is a wasteful number, since it uses less digits than its factorization.

689480288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181095 (or 181087 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 53.

The square root of 689480288 is about 26257.9566607914. The cubic root of 689480288 is about 883.4336783438.

The spelling of 689480288 in words is "six hundred eighty-nine million, four hundred eighty thousand, two hundred eighty-eight".