544749421 has 2 divisors, whose sum is σ = 544749422. Its totient is φ = 544749420.

The previous prime is 544749407. The next prime is 544749467. The reversal of 544749421 is 124947445.

544749421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 532224900 + 12524521 = 23070^2 + 3539^2 .

It is a cyclic number.

It is not a de Polignac number, because 544749421 - 2⁵ = 544749389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544749481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272374710 + 272374711.

It is an arithmetic number, because the mean of its divisors is an integer number (272374711).

Almost surely, 2^544749421 is an apocalyptic number.

It is an amenable number.

544749421 is a deficient number, since it is larger than the sum of its proper divisors (1).

544749421 is an equidigital number, since it uses as much as digits as its factorization.

544749421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 40.

The square root of 544749421 is about 23339.8676303016. The cubic root of 544749421 is about 816.7057108826.

The spelling of 544749421 in words is "five hundred forty-four million, seven hundred forty-nine thousand, four hundred twenty-one".