4481789 has 4 divisors (see below), whose sum is σ = 4826556. Its totient is φ = 4137024.

The previous prime is 4481767. The next prime is 4481791. The reversal of 4481789 is 9871844.

It is a happy number.

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 648025 + 3833764 = 805^2 + 1958^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4481789 is a prime.

It is an Ulam number.

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 (4481189) 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, 172364 + ... + 172389.

It is an arithmetic number, because the mean of its divisors is an integer number (1206639).

Almost surely, 2^4481789 is an apocalyptic number.

It is an amenable number.

4481789 is a deficient number, since it is larger than the sum of its proper divisors (344767).

4481789 is a wasteful number, since it uses less digits than its factorization.

4481789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344766.

The product of its digits is 64512, while the sum is 41.

The square root of 4481789 is about 2117.0236181961. The cubic root of 4481789 is about 164.8733524632.

The spelling of 4481789 in words is "four million, four hundred eighty-one thousand, seven hundred eighty-nine".