689471310 has 128 divisors (see below), whose sum is σ = 1882165248. Its totient is φ = 161462400.

The previous prime is 689471291. The next prime is 689471311. The reversal of 689471310 is 13174986.

It is a super-2 number, since 2×689471310² = 950741374626232200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689471311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1237552 + ... + 1238108.

It is an arithmetic number, because the mean of its divisors is an integer number (14704416).

Almost surely, 2^689471310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689471310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (941082624).

689471310 is an abundant number, since it is smaller than the sum of its proper divisors (1192693938).

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

689471310 is a wasteful number, since it uses less digits than its factorization.

689471310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 689471310 is about 26257.7857025302. The cubic root of 689471310 is about 883.4298438122.

The spelling of 689471310 in words is "six hundred eighty-nine million, four hundred seventy-one thousand, three hundred ten".