3428239 has 2 divisors, whose sum is σ = 3428240. Its totient is φ = 3428238.

The previous prime is 3428231. The next prime is 3428251. The reversal of 3428239 is 9328243.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3428239 - 2³ = 3428231 is a prime.

It is a super-2 number, since 2×3428239² = 23505645282242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3428239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3428231) 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 as a sum of consecutive naturals, namely, 1714119 + 1714120.

It is an arithmetic number, because the mean of its divisors is an integer number (1714120).

Almost surely, 2^3428239 is an apocalyptic number.

3428239 is a deficient number, since it is larger than the sum of its proper divisors (1).

3428239 is an equidigital number, since it uses as much as digits as its factorization.

3428239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 3428239 is about 1851.5504313953. The cubic root of 3428239 is about 150.7846146358.

The spelling of 3428239 in words is "three million, four hundred twenty-eight thousand, two hundred thirty-nine".