3123289 has 6 divisors (see below), whose sum is σ = 3382206. Its totient is φ = 2882880.

The previous prime is 3123287. The next prime is 3123317. The reversal of 3123289 is 9823213.

It can be written as a sum of positive squares in 3 ways, for example, as 233289 + 2890000 = 483^2 + 1700^2 .

It is not a de Polignac number, because 3123289 - 2¹ = 3123287 is a prime.

It is a Duffinian number.

3123289 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3123287) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9072 + ... + 9409.

It is an arithmetic number, because the mean of its divisors is an integer number (563701).

Almost surely, 2^3123289 is an apocalyptic number.

It is an amenable number.

3123289 is a deficient number, since it is larger than the sum of its proper divisors (258917).

3123289 is a wasteful number, since it uses less digits than its factorization.

3123289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18507 (or 18494 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 3123289 is about 1767.2829428249. The cubic root of 3123289 is about 146.1741994029.

The spelling of 3123289 in words is "three million, one hundred twenty-three thousand, two hundred eighty-nine".