1689376 has 48 divisors (see below), whose sum is σ = 3725568. Its totient is φ = 748800.

The previous prime is 1689367. The next prime is 1689377. The reversal of 1689376 is 6739861.

It is not an unprimeable number, because it can be changed into a prime (1689377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12831 + ... + 12961.

It is an arithmetic number, because the mean of its divisors is an integer number (77616).

2^1689376 is an apocalyptic number.

1689376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1689376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1862784).

1689376 is an abundant number, since it is smaller than the sum of its proper divisors (2036192).

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

1689376 is a wasteful number, since it uses less digits than its factorization.

1689376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 177 counting only the distinct ones).

The product of its digits is 54432, while the sum is 40.

The square root of 1689376 is about 1299.7599778421. The cubic root of 1689376 is about 119.0991805497.

The spelling of 1689376 in words is "one million, six hundred eighty-nine thousand, three hundred seventy-six".