1384889 has 4 divisors (see below), whose sum is σ = 1510800. Its totient is φ = 1258980.

The previous prime is 1384879. The next prime is 1384909. The reversal of 1384889 is 9884831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9884831 = 11 ⋅898621.

It is a cyclic number.

It is not a de Polignac number, because 1384889 - 2¹² = 1380793 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1384829) 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, 62939 + ... + 62960.

It is an arithmetic number, because the mean of its divisors is an integer number (377700).

2^1384889 is an apocalyptic number.

It is an amenable number.

1384889 is a deficient number, since it is larger than the sum of its proper divisors (125911).

1384889 is a wasteful number, since it uses less digits than its factorization.

1384889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125910.

The product of its digits is 55296, while the sum is 41.

The square root of 1384889 is about 1176.8130692680. The cubic root of 1384889 is about 111.4649490663.

The spelling of 1384889 in words is "one million, three hundred eighty-four thousand, eight hundred eighty-nine".