3123389 has 4 divisors (see below), whose sum is σ = 3131580. Its totient is φ = 3115200.

The previous prime is 3123349. The next prime is 3123403. The reversal of 3123389 is 9833213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2656900 + 466489 = 1630^2 + 683^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123389 - 2¹² = 3119293 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 (3123349) 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, 3494 + ... + 4295.

It is an arithmetic number, because the mean of its divisors is an integer number (782895).

Almost surely, 2^3123389 is an apocalyptic number.

It is an amenable number.

3123389 is a deficient number, since it is larger than the sum of its proper divisors (8191).

3123389 is an equidigital number, since it uses as much as digits as its factorization.

3123389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8190.

The product of its digits is 3888, while the sum is 29.

The square root of 3123389 is about 1767.3112346160. The cubic root of 3123389 is about 146.1757594318.

The spelling of 3123389 in words is "three million, one hundred twenty-three thousand, three hundred eighty-nine".