1689396 has 24 divisors (see below), whose sum is σ = 4113984. Its totient is φ = 538560.

The previous prime is 1689379. The next prime is 1689397. The reversal of 1689396 is 6939861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1689397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2785 + ... + 3336.

It is an arithmetic number, because the mean of its divisors is an integer number (171416).

2^1689396 is an apocalyptic number.

It is an amenable number.

1689396 is an abundant number, since it is smaller than the sum of its proper divisors (2424588).

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

1689396 is a wasteful number, since it uses less digits than its factorization.

1689396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6151 (or 6149 counting only the distinct ones).

The product of its digits is 69984, while the sum is 42.

The square root of 1689396 is about 1299.7676715475. The cubic root of 1689396 is about 119.0996505406.

The spelling of 1689396 in words is "one million, six hundred eighty-nine thousand, three hundred ninety-six".