4222657 has 2 divisors, whose sum is σ = 4222658. Its totient is φ = 4222656.

The previous prime is 4222649. The next prime is 4222667. The reversal of 4222657 is 7562224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2792241 + 1430416 = 1671^2 + 1196^2 .

It is a cyclic number.

It is not a de Polignac number, because 4222657 - 2³ = 4222649 is a prime.

It is an Ulam number.

It is equal to p₂₉₇₈₁₁ and since 4222657 and 297811 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (4222627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111328 + 2111329.

It is an arithmetic number, because the mean of its divisors is an integer number (2111329).

Almost surely, 2^4222657 is an apocalyptic number.

It is an amenable number.

4222657 is a deficient number, since it is larger than the sum of its proper divisors (1).

4222657 is an equidigital number, since it uses as much as digits as its factorization.

4222657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 28.

The square root of 4222657 is about 2054.9104603364. The cubic root of 4222657 is about 161.6324671107.

The spelling of 4222657 in words is "four million, two hundred twenty-two thousand, six hundred fifty-seven".