4494991 has 2 divisors, whose sum is σ = 4494992. Its totient is φ = 4494990.

The previous prime is 4494989. The next prime is 4495009. The reversal of 4494991 is 1994944.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4494991 - 2¹ = 4494989 is a prime.

Together with 4494989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4494901) 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, 2247495 + 2247496.

It is an arithmetic number, because the mean of its divisors is an integer number (2247496).

Almost surely, 2^4494991 is an apocalyptic number.

4494991 is a deficient number, since it is larger than the sum of its proper divisors (1).

4494991 is an equidigital number, since it uses as much as digits as its factorization.

4494991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 4494991 is about 2120.1393822105. The cubic root of 4494991 is about 165.0350828370.

The spelling of 4494991 in words is "four million, four hundred ninety-four thousand, nine hundred ninety-one".