1689368 has 16 divisors (see below), whose sum is σ = 3235680. Its totient is φ = 826528.

The previous prime is 1689367. The next prime is 1689377. The reversal of 1689368 is 8639861.

It is a happy number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1689367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1871 + ... + 2622.

It is an arithmetic number, because the mean of its divisors is an integer number (202230).

2^1689368 is an apocalyptic number.

It is an amenable number.

1689368 is a deficient number, since it is larger than the sum of its proper divisors (1546312).

1689368 is a wasteful number, since it uses less digits than its factorization.

1689368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4546 (or 4542 counting only the distinct ones).

The product of its digits is 62208, while the sum is 41.

The square root of 1689368 is about 1299.7569003471. The cubic root of 1689368 is about 119.0989925523.

It can be divided in two parts, 16893 and 68, that added together give a palindrome (16961).

The spelling of 1689368 in words is "one million, six hundred eighty-nine thousand, three hundred sixty-eight".