1689336 has 96 divisors (see below), whose sum is σ = 5241600. Its totient is φ = 505440.

The previous prime is 1689319. The next prime is 1689343. The reversal of 1689336 is 6339861.

It is a happy number.

It is a super-2 number, since 2×1689336² = 5707712241792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a d-powerful number, because it can be written as 1 + 6³ + 8³ + 9⁴ + 3⁵ + 3⁷ + 6⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 1689336.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21345 + ... + 21423.

It is an arithmetic number, because the mean of its divisors is an integer number (54600).

2^1689336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1689336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2620800).

1689336 is an abundant number, since it is smaller than the sum of its proper divisors (3552264).

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

1689336 is a wasteful number, since it uses less digits than its factorization.

1689336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 95 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 1689336 is about 1299.7445902946. The cubic root of 1689336 is about 119.0982405567.

It can be divided in two parts, 1689 and 336, that added together give a square (2025 = 45²).

The spelling of 1689336 in words is "one million, six hundred eighty-nine thousand, three hundred thirty-six".