3005389 has 4 divisors (see below), whose sum is σ = 3009600. Its totient is φ = 3001180.

The previous prime is 3005383. The next prime is 3005393. The reversal of 3005389 is 9835003.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 3005389 - 2³ = 3005381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3005381) 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, 739 + ... + 2560.

It is an arithmetic number, because the mean of its divisors is an integer number (752400).

Almost surely, 2^3005389 is an apocalyptic number.

It is an amenable number.

3005389 is a deficient number, since it is larger than the sum of its proper divisors (4211).

3005389 is an equidigital number, since it uses as much as digits as its factorization.

3005389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4210.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 3005389 is about 1733.6057798704. The cubic root of 3005389 is about 144.3112640719.

The spelling of 3005389 in words is "three million, five thousand, three hundred eighty-nine".