4494989 has 2 divisors, whose sum is σ = 4494990. Its totient is φ = 4494988.

The previous prime is 4494977. The next prime is 4494991. The reversal of 4494989 is 9894944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2778889 + 1716100 = 1667^2 + 1310^2 .

It is a cyclic number.

It is not a de Polignac number, because 4494989 - 2⁸ = 4494733 is a prime.

It is a super-2 number, since 2×4494989² = 40409852220242, which contains 22 as substring.

Together with 4494991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4494929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2247494 + 2247495.

It is an arithmetic number, because the mean of its divisors is an integer number (2247495).

Almost surely, 2^4494989 is an apocalyptic number.

It is an amenable number.

4494989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4494989 is an equidigital number, since it uses as much as digits as its factorization.

4494989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 47.

The square root of 4494989 is about 2120.1389105434. The cubic root of 4494989 is about 165.0350583601.

The spelling of 4494989 in words is "four million, four hundred ninety-four thousand, nine hundred eighty-nine".