689488828 has 12 divisors (see below), whose sum is σ = 1378977712. Its totient is φ = 295495200.

The previous prime is 689488817. The next prime is 689488867. The reversal of 689488828 is 828884986.

689488828 is an admirable number.

It is a super-3 number, since 3×689488828³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

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, 12312273 + ... + 12312328.

Almost surely, 2^689488828 is an apocalyptic number.

It is an amenable number.

689488828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

689488828 is a wasteful number, since it uses less digits than its factorization.

689488828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24624612 (or 24624610 counting only the distinct ones).

The product of its digits is 14155776, while the sum is 61.

The square root of 689488828 is about 26258.1192776634. The cubic root of 689488828 is about 883.4373257735.

The spelling of 689488828 in words is "six hundred eighty-nine million, four hundred eighty-eight thousand, eight hundred twenty-eight".