4428491 has 2 divisors, whose sum is σ = 4428492. Its totient is φ = 4428490.

The previous prime is 4428469. The next prime is 4428497. The reversal of 4428491 is 1948244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4428491 - 2⁶ = 4428427 is a prime.

It is a super-2 number, since 2×4428491² = 39223065074162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4428497) 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, 2214245 + 2214246.

It is an arithmetic number, because the mean of its divisors is an integer number (2214246).

Almost surely, 2^4428491 is an apocalyptic number.

4428491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4428491 is an equidigital number, since it uses as much as digits as its factorization.

4428491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 32.

The square root of 4428491 is about 2104.3980136847. The cubic root of 4428491 is about 164.2171795510.

The spelling of 4428491 in words is "four million, four hundred twenty-eight thousand, four hundred ninety-one".