1384689 has 12 divisors (see below), whose sum is σ = 1896656. Its totient is φ = 898392.

The previous prime is 1384679. The next prime is 1384697. The reversal of 1384689 is 9864831.

It is not a de Polignac number, because 1384689 - 2⁴ = 1384673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1384619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16642 + ... + 16724.

2^1384689 is an apocalyptic number.

It is an amenable number.

1384689 is a deficient number, since it is larger than the sum of its proper divisors (511967).

1384689 is an frugal number, since it uses more digits than its factorization.

1384689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 153 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 1384689 is about 1176.7280909369. The cubic root of 1384689 is about 111.4595830374.

The spelling of 1384689 in words is "one million, three hundred eighty-four thousand, six hundred eighty-nine".