4469989 has 2 divisors, whose sum is σ = 4469990. Its totient is φ = 4469988.

The previous prime is 4469987. The next prime is 4470013. The reversal of 4469989 is 9899644.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3802500 + 667489 = 1950^2 + 817^2 .

It is a cyclic number.

It is not a de Polignac number, because 4469989 - 2¹ = 4469987 is a prime.

Together with 4469987, 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 (4469987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2234994 + 2234995.

It is an arithmetic number, because the mean of its divisors is an integer number (2234995).

Almost surely, 2^4469989 is an apocalyptic number.

It is an amenable number.

4469989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4469989 is an equidigital number, since it uses as much as digits as its factorization.

4469989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 49.

The square root of 4469989 is about 2114.2348497743. The cubic root of 4469989 is about 164.7285281912.

The spelling of 4469989 in words is "four million, four hundred sixty-nine thousand, nine hundred eighty-nine".