689469 has 16 divisors (see below), whose sum is σ = 1062720. Its totient is φ = 392960.

The previous prime is 689467. The next prime is 689509. The reversal of 689469 is 964986.

689469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 689469 - 2¹ = 689467 is a prime.

It is a super-2 number, since 2×689469² = 950735003922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 689469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689461) 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, 54 + ... + 1175.

It is an arithmetic number, because the mean of its divisors is an integer number (66420).

2⁶⁸⁹⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

689469 is a deficient number, since it is larger than the sum of its proper divisors (373251).

689469 is a wasteful number, since it uses less digits than its factorization.

689469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260.

The product of its digits is 93312, while the sum is 42.

The square root of 689469 is about 830.3427003352. The cubic root of 689469 is about 88.3428857199.

The spelling of 689469 in words is "six hundred eighty-nine thousand, four hundred sixty-nine".