4453989 has 4 divisors (see below), whose sum is σ = 5938656. Its totient is φ = 2969324.

The previous prime is 4453963. The next prime is 4453991. The reversal of 4453989 is 9893544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4453989 - 2⁵ = 4453957 is a prime.

It is a D-number.

4453989 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4453989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4453909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742329 + ... + 742334.

It is an arithmetic number, because the mean of its divisors is an integer number (1484664).

Almost surely, 2^4453989 is an apocalyptic number.

It is an amenable number.

4453989 is a deficient number, since it is larger than the sum of its proper divisors (1484667).

4453989 is a wasteful number, since it uses less digits than its factorization.

4453989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484666.

The product of its digits is 155520, while the sum is 42.

The square root of 4453989 is about 2110.4475828601. The cubic root of 4453989 is about 164.5317486292.

The spelling of 4453989 in words is "four million, four hundred fifty-three thousand, nine hundred eighty-nine".