3118389 has 4 divisors (see below), whose sum is σ = 4157856. Its totient is φ = 2078924.

The previous prime is 3118387. The next prime is 3118411. The reversal of 3118389 is 9838113.

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 3118389 - 2¹ = 3118387 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3118387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519729 + ... + 519734.

It is an arithmetic number, because the mean of its divisors is an integer number (1039464).

Almost surely, 2^3118389 is an apocalyptic number.

It is an amenable number.

3118389 is a deficient number, since it is larger than the sum of its proper divisors (1039467).

3118389 is a wasteful number, since it uses less digits than its factorization.

3118389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039466.

The product of its digits is 5184, while the sum is 33.

The square root of 3118389 is about 1765.8960898082. The cubic root of 3118389 is about 146.0977171571.

The spelling of 3118389 in words is "three million, one hundred eighteen thousand, three hundred eighty-nine".