4208257 has 2 divisors, whose sum is σ = 4208258. Its totient is φ = 4208256.

The previous prime is 4208249. The next prime is 4208261. The reversal of 4208257 is 7528024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2989441 + 1218816 = 1729^2 + 1104^2 .

It is a cyclic number.

It is not a de Polignac number, because 4208257 - 2³ = 4208249 is a prime.

It is not a weakly prime, because it can be changed into another prime (4208227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2104128 + 2104129.

It is an arithmetic number, because the mean of its divisors is an integer number (2104129).

Almost surely, 2^4208257 is an apocalyptic number.

It is an amenable number.

4208257 is a deficient number, since it is larger than the sum of its proper divisors (1).

4208257 is an equidigital number, since it uses as much as digits as its factorization.

4208257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 4208257 is about 2051.4036657859. The cubic root of 4208257 is about 161.4485261871.

It can be divided in two parts, 4208 and 257, that added together give a triangular number (4465 = T₉₄).

The spelling of 4208257 in words is "four million, two hundred eight thousand, two hundred fifty-seven".