689151 has 4 divisors (see below), whose sum is σ = 918872. Its totient is φ = 459432.

The previous prime is 689141. The next prime is 689167. The reversal of 689151 is 151986.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 689151 - 2¹³ = 680959 is a prime.

It is a D-number.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114856 + ... + 114861.

It is an arithmetic number, because the mean of its divisors is an integer number (229718).

2⁶⁸⁹¹⁵¹ is an apocalyptic number.

689151 is a deficient number, since it is larger than the sum of its proper divisors (229721).

689151 is a wasteful number, since it uses less digits than its factorization.

689151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229720.

The product of its digits is 2160, while the sum is 30.

The square root of 689151 is about 830.1511910490. The cubic root of 689151 is about 88.3293016632.

The spelling of 689151 in words is "six hundred eighty-nine thousand, one hundred fifty-one".