689053020 has 48 divisors (see below), whose sum is σ = 1930498080. Its totient is φ = 183638016.

The previous prime is 689052977. The next prime is 689053049. The reversal of 689053020 is 20350986.

It is a happy number.

It is a super-2 number, since 2×689053020² = 949588128742240800, which contains 22 as substring.

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, 175236 + ... + 179124.

It is an arithmetic number, because the mean of its divisors is an integer number (40218710).

Almost surely, 2^689053020 is an apocalyptic number.

689053020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

689053020 is an abundant number, since it is smaller than the sum of its proper divisors (1241445060).

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

689053020 is a wasteful number, since it uses less digits than its factorization.

689053020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6854 (or 6852 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 689053020 is about 26249.8194279504. The cubic root of 689053020 is about 883.2511539386.

The spelling of 689053020 in words is "six hundred eighty-nine million, fifty-three thousand, twenty".