689125 has 16 divisors (see below), whose sum is σ = 889200. Its totient is φ = 532800.

The previous prime is 689113. The next prime is 689131. The reversal of 689125 is 521986.

689125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 217156 + 471969 = 466^2 + 687^2 .

It is not a de Polignac number, because 689125 - 2⁵ = 689093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4551 + ... + 4699.

It is an arithmetic number, because the mean of its divisors is an integer number (55575).

2⁶⁸⁹¹²⁵ is an apocalyptic number.

It is an amenable number.

689125 is a deficient number, since it is larger than the sum of its proper divisors (200075).

689125 is a wasteful number, since it uses less digits than its factorization.

689125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 191 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 689125 is about 830.1355311032. The cubic root of 689125 is about 88.3281908323.

The spelling of 689125 in words is "six hundred eighty-nine thousand, one hundred twenty-five".