544121647 has 4 divisors (see below), whose sum is σ = 553041736. Its totient is φ = 535201560.

The previous prime is 544121629. The next prime is 544121663. The reversal of 544121647 is 746121445.

544121647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 544121647 - 2¹¹ = 544119599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544121687) 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, 4459953 + ... + 4460074.

It is an arithmetic number, because the mean of its divisors is an integer number (138260434).

Almost surely, 2^544121647 is an apocalyptic number.

544121647 is a deficient number, since it is larger than the sum of its proper divisors (8920089).

544121647 is an equidigital number, since it uses as much as digits as its factorization.

544121647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8920088.

The product of its digits is 26880, while the sum is 34.

The square root of 544121647 is about 23326.4152196603. The cubic root of 544121647 is about 816.3918640223.

The spelling of 544121647 in words is "five hundred forty-four million, one hundred twenty-one thousand, six hundred forty-seven".