4428091 has 2 divisors, whose sum is σ = 4428092. Its totient is φ = 4428090.

The previous prime is 4428079. The next prime is 4428103. The reversal of 4428091 is 1908244.

It is a balanced prime because it is at equal distance from previous prime (4428079) and next prime (4428103).

It is a cyclic number.

It is not a de Polignac number, because 4428091 - 2⁵ = 4428059 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4428001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2214045 + 2214046.

It is an arithmetic number, because the mean of its divisors is an integer number (2214046).

Almost surely, 2^4428091 is an apocalyptic number.

4428091 is a deficient number, since it is larger than the sum of its proper divisors (1).

4428091 is an equidigital number, since it uses as much as digits as its factorization.

4428091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 4428091 is about 2104.3029724828. The cubic root of 4428091 is about 164.2122351392.

The spelling of 4428091 in words is "four million, four hundred twenty-eight thousand, ninety-one".