689572224 has 384 divisors, whose sum is σ = 2393042400. Its totient is φ = 194641920.

The previous prime is 689572211. The next prime is 689572229. The reversal of 689572224 is 422275986.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×689572224² = 951019704224612352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 689572224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689572229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7108944 + ... + 7109040.

Almost surely, 2^689572224 is an apocalyptic number.

689572224 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689572224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1196521200).

689572224 is an abundant number, since it is smaller than the sum of its proper divisors (1703470176).

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

689572224 is a wasteful number, since it uses less digits than its factorization.

689572224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 130 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 689572224 is about 26259.7072337069. The cubic root of 689572224 is about 883.4729425792.

The spelling of 689572224 in words is "six hundred eighty-nine million, five hundred seventy-two thousand, two hundred twenty-four".