4416389 has 4 divisors (see below), whose sum is σ = 4431756. Its totient is φ = 4401024.

The previous prime is 4416371. The next prime is 4416409. The reversal of 4416389 is 9836144.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3330625 + 1085764 = 1825^2 + 1042^2 .

It is a cyclic number.

It is not a de Polignac number, because 4416389 - 2⁸ = 4416133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4416319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7244 + ... + 7829.

It is an arithmetic number, because the mean of its divisors is an integer number (1107939).

Almost surely, 2^4416389 is an apocalyptic number.

It is an amenable number.

4416389 is a deficient number, since it is larger than the sum of its proper divisors (15367).

4416389 is a wasteful number, since it uses less digits than its factorization.

4416389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15366.

The product of its digits is 20736, while the sum is 35.

The square root of 4416389 is about 2101.5206399177. The cubic root of 4416389 is about 164.0674544052.

The spelling of 4416389 in words is "four million, four hundred sixteen thousand, three hundred eighty-nine".