544926721 has 8 divisors (see below), whose sum is σ = 579039624. Its totient is φ = 511042560.

The previous prime is 544926691. The next prime is 544926727. The reversal of 544926721 is 127629445.

It can be written as a sum of positive squares in 4 ways, for example, as 126315121 + 418611600 = 11239^2 + 20460^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 544926721 - 2⁵ = 544926689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544926727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52260 + ... + 61813.

It is an arithmetic number, because the mean of its divisors is an integer number (72379953).

Almost surely, 2^544926721 is an apocalyptic number.

It is an amenable number.

544926721 is a deficient number, since it is larger than the sum of its proper divisors (34112903).

544926721 is a wasteful number, since it uses less digits than its factorization.

544926721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114371.

The product of its digits is 120960, while the sum is 40.

The square root of 544926721 is about 23343.6655433546. The cubic root of 544926721 is about 816.7943058771.

The spelling of 544926721 in words is "five hundred forty-four million, nine hundred twenty-six thousand, seven hundred twenty-one".