689052 has 48 divisors (see below), whose sum is σ = 1981952. Its totient is φ = 181440.

The previous prime is 689041. The next prime is 689063. The reversal of 689052 is 250986.

It is an interprime number because it is at equal distance from previous prime (689041) and next prime (689063).

It is a congruent number.

It is an unprimeable number.

689052 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 777 + ... + 1407.

2⁶⁸⁹⁰⁵² 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 689052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (990976).

689052 is an abundant number, since it is smaller than the sum of its proper divisors (1292900).

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

689052 is a wasteful number, since it uses less digits than its factorization.

689052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 689052 is about 830.0915612148. The cubic root of 689052 is about 88.3250718115.

The spelling of 689052 in words is "six hundred eighty-nine thousand, fifty-two".