689205348 has 84 divisors (see below), whose sum is σ = 1947546748. Its totient is φ = 212051520.

The previous prime is 689205331. The next prime is 689205353. The reversal of 689205348 is 843502986.

It can be written as a sum of positive squares in 2 ways, for example, as 403527744 + 285677604 = 20088^2 + 16902^2 .

It is a super-2 number, since 2×689205348² = 950008023423602208, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 28818 + ... + 46998.

Almost surely, 2^689205348 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689205348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (973773374).

689205348 is an abundant number, since it is smaller than the sum of its proper divisors (1258341400).

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

689205348 is a wasteful number, since it uses less digits than its factorization.

689205348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18216 (or 18199 counting only the distinct ones).

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

The square root of 689205348 is about 26252.7207732837. The cubic root of 689205348 is about 883.3162355142.

The spelling of 689205348 in words is "six hundred eighty-nine million, two hundred five thousand, three hundred forty-eight".