689305302 has 80 divisors (see below), whose sum is σ = 1772508672. Its totient is φ = 196130160.

The previous prime is 689305297. The next prime is 689305339. The reversal of 689305302 is 203503986.

It is a super-2 number, since 2×689305302² = 950283598730622408, 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 (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 306193 + ... + 308435.

Almost surely, 2^689305302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689305302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (886254336).

689305302 is an abundant number, since it is smaller than the sum of its proper divisors (1083203370).

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

689305302 is a wasteful number, since it uses less digits than its factorization.

689305302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2535 (or 2526 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 689305302 is about 26254.6243926665. The cubic root of 689305302 is about 883.3589352811.

The spelling of 689305302 in words is "six hundred eighty-nine million, three hundred five thousand, three hundred two".