3427289 has 2 divisors, whose sum is σ = 3427290. Its totient is φ = 3427288.

The previous prime is 3427279. The next prime is 3427309. The reversal of 3427289 is 9827243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2890000 + 537289 = 1700^2 + 733^2 .

It is an emirp because it is prime and its reverse (9827243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3427289 - 2¹⁶ = 3361753 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3427279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1713644 + 1713645.

It is an arithmetic number, because the mean of its divisors is an integer number (1713645).

Almost surely, 2^3427289 is an apocalyptic number.

It is an amenable number.

3427289 is a deficient number, since it is larger than the sum of its proper divisors (1).

3427289 is an equidigital number, since it uses as much as digits as its factorization.

3427289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 3427289 is about 1851.2938718637. The cubic root of 3427289 is about 150.7706853641.

The spelling of 3427289 in words is "three million, four hundred twenty-seven thousand, two hundred eighty-nine".