4228891 has 2 divisors, whose sum is σ = 4228892. Its totient is φ = 4228890.

The previous prime is 4228883. The next prime is 4228897. The reversal of 4228891 is 1988224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4228891 - 2³ = 4228883 is a prime.

It is not a weakly prime, because it can be changed into another prime (4228897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2114445 + 2114446.

It is an arithmetic number, because the mean of its divisors is an integer number (2114446).

Almost surely, 2^4228891 is an apocalyptic number.

4228891 is a deficient number, since it is larger than the sum of its proper divisors (1).

4228891 is an equidigital number, since it uses as much as digits as its factorization.

4228891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 34.

The square root of 4228891 is about 2056.4267553210. The cubic root of 4228891 is about 161.7119685045.

The spelling of 4228891 in words is "four million, two hundred twenty-eight thousand, eight hundred ninety-one".