3420270257 has 2 divisors, whose sum is σ = 3420270258. Its totient is φ = 3420270256.

The previous prime is 3420270193. The next prime is 3420270283. The reversal of 3420270257 is 7520720243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1924050496 + 1496219761 = 43864^2 + 38681^2 .

It is an emirp because it is prime and its reverse (7520720243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3420270257 - 2⁶ = 3420270193 is a prime.

It is not a weakly prime, because it can be changed into another prime (3420273257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710135128 + 1710135129.

It is an arithmetic number, because the mean of its divisors is an integer number (1710135129).

Almost surely, 2^3420270257 is an apocalyptic number.

It is an amenable number.

3420270257 is a deficient number, since it is larger than the sum of its proper divisors (1).

3420270257 is an equidigital number, since it uses as much as digits as its factorization.

3420270257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 3420270257 is about 58483.0766718031. The cubic root of 3420270257 is about 1506.6769396266.

The spelling of 3420270257 in words is "three billion, four hundred twenty million, two hundred seventy thousand, two hundred fifty-seven".