3420569 has 2 divisors, whose sum is σ = 3420570. Its totient is φ = 3420568.

The previous prime is 3420563. The next prime is 3420577. The reversal of 3420569 is 9650243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3385600 + 34969 = 1840^2 + 187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3420569 is a prime.

It is a super-2 number, since 2×3420569² = 23400584567522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3420563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710284 + 1710285.

It is an arithmetic number, because the mean of its divisors is an integer number (1710285).

Almost surely, 2^3420569 is an apocalyptic number.

It is an amenable number.

3420569 is a deficient number, since it is larger than the sum of its proper divisors (1).

3420569 is an equidigital number, since it uses as much as digits as its factorization.

3420569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 3420569 is about 1849.4780344735. The cubic root of 3420569 is about 150.6720805174.

The spelling of 3420569 in words is "three million, four hundred twenty thousand, five hundred sixty-nine".