544428817 has 4 divisors (see below), whose sum is σ = 551886820. Its totient is φ = 536970816.

The previous prime is 544428809. The next prime is 544428827. The reversal of 544428817 is 718824445.

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 391881616 + 152547201 = 19796^2 + 12351^2 .

It is a cyclic number.

It is not a de Polignac number, because 544428817 - 2³ = 544428809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544428827) 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, 3728892 + ... + 3729037.

It is an arithmetic number, because the mean of its divisors is an integer number (137971705).

Almost surely, 2^544428817 is an apocalyptic number.

It is an amenable number.

544428817 is a deficient number, since it is larger than the sum of its proper divisors (7458003).

544428817 is an equidigital number, since it uses as much as digits as its factorization.

544428817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7458002.

The product of its digits is 286720, while the sum is 43.

The square root of 544428817 is about 23332.9984571208. The cubic root of 544428817 is about 816.5454595257.

The spelling of 544428817 in words is "five hundred forty-four million, four hundred twenty-eight thousand, eight hundred seventeen".