1689468 has 24 divisors (see below), whose sum is σ = 4300800. Its totient is φ = 511920.

The previous prime is 1689451. The next prime is 1689497. The reversal of 1689468 is 8649861.

It is a super-3 number, since 3×1689468³ = 14466756297543333696, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6268 + ... + 6531.

It is an arithmetic number, because the mean of its divisors is an integer number (179200).

2^1689468 is an apocalyptic number.

It is an amenable number.

1689468 is an abundant number, since it is smaller than the sum of its proper divisors (2611332).

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

1689468 is a wasteful number, since it uses less digits than its factorization.

1689468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12817 (or 12815 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 1689468 is about 1299.7953685100. The cubic root of 1689468 is about 119.1013424773.

The spelling of 1689468 in words is "one million, six hundred eighty-nine thousand, four hundred sixty-eight".