3420427 has 2 divisors, whose sum is σ = 3420428. Its totient is φ = 3420426.

The previous prime is 3420421. The next prime is 3420433. The reversal of 3420427 is 7240243.

It is a balanced prime because it is at equal distance from previous prime (3420421) and next prime (3420433).

It is an emirp because it is prime and its reverse (7240243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3420427 - 2⁷ = 3420299 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3420398 and 3420407.

It is not a weakly prime, because it can be changed into another prime (3420421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710213 + 1710214.

It is an arithmetic number, because the mean of its divisors is an integer number (1710214).

Almost surely, 2^3420427 is an apocalyptic number.

3420427 is a deficient number, since it is larger than the sum of its proper divisors (1).

3420427 is an equidigital number, since it uses as much as digits as its factorization.

3420427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 3420427 is about 1849.4396448654. The cubic root of 3420427 is about 150.6699955104.

The spelling of 3420427 in words is "three million, four hundred twenty thousand, four hundred twenty-seven".