4223257 has 2 divisors, whose sum is σ = 4223258. Its totient is φ = 4223256.

The previous prime is 4223251. The next prime is 4223267. The reversal of 4223257 is 7523224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3455881 + 767376 = 1859^2 + 876^2 .

It is a cyclic number.

It is not a de Polignac number, because 4223257 - 2¹¹ = 4221209 is a prime.

It is a d-powerful number, because it can be written as 4⁵ + 2¹² + 2¹³ + 3² + 2²² + 5⁶ + 7 .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4223251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111628 + 2111629.

It is an arithmetic number, because the mean of its divisors is an integer number (2111629).

Almost surely, 2^4223257 is an apocalyptic number.

It is an amenable number.

4223257 is a deficient number, since it is larger than the sum of its proper divisors (1).

4223257 is an equidigital number, since it uses as much as digits as its factorization.

4223257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 25.

The square root of 4223257 is about 2055.0564469133. The cubic root of 4223257 is about 161.6401222346.

The spelling of 4223257 in words is "four million, two hundred twenty-three thousand, two hundred fifty-seven".