1385089 has 4 divisors (see below), whose sum is σ = 1387456. Its totient is φ = 1382724.

The previous prime is 1385077. The next prime is 1385093. The reversal of 1385089 is 9805831.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1385089 - 2⁵ = 1385057 is a prime.

It is a Duffinian number.

1385089 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1385009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412 + ... + 1714.

It is an arithmetic number, because the mean of its divisors is an integer number (346864).

2^1385089 is an apocalyptic number.

It is an amenable number.

1385089 is a deficient number, since it is larger than the sum of its proper divisors (2367).

1385089 is a wasteful number, since it uses less digits than its factorization.

1385089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 1385089 is about 1176.8980414632. The cubic root of 1385089 is about 111.4703145785.

The spelling of 1385089 in words is "one million, three hundred eighty-five thousand, eighty-nine".