689228352 has 70 divisors (see below), whose sum is σ = 2043104118. Its totient is φ = 229741056.

The previous prime is 689228339. The next prime is 689228357. The reversal of 689228352 is 253822986.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 624200256 + 65028096 = 24984^2 + 8064^2 .

It is a junction number, because it is equal to n+sod(n) for n = 689228298 and 689228307.

It is not an unprimeable number, because it can be changed into a prime (689228357) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 61293 + ... + 71660.

Almost surely, 2^689228352 is an apocalyptic number.

It is an amenable number.

689228352 is an abundant number, since it is smaller than the sum of its proper divisors (1353875766).

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

689228352 is a wasteful number, since it uses less digits than its factorization.

689228352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132977 (or 132958 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 689228352 is about 26253.1588956453. The cubic root of 689228352 is about 883.3260630548.

The spelling of 689228352 in words is "six hundred eighty-nine million, two hundred twenty-eight thousand, three hundred fifty-two".