689061 has 16 divisors (see below), whose sum is σ = 993600. Its totient is φ = 423168.

The previous prime is 689041. The next prime is 689063. The reversal of 689061 is 160986.

It is not a de Polignac number, because 689061 - 2¹¹ = 687013 is a prime.

689061 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2895 + ... + 3123.

It is an arithmetic number, because the mean of its divisors is an integer number (62100).

2⁶⁸⁹⁰⁶¹ is an apocalyptic number.

It is an amenable number.

689061 is a deficient number, since it is larger than the sum of its proper divisors (304539).

689061 is a wasteful number, since it uses less digits than its factorization.

689061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 689061 is about 830.0969822858. The cubic root of 689061 is about 88.3254563602.

The spelling of 689061 in words is "six hundred eighty-nine thousand, sixty-one".