544456397 has 2 divisors, whose sum is σ = 544456398. Its totient is φ = 544456396.

The previous prime is 544456361. The next prime is 544456447. The reversal of 544456397 is 793654445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503060041 + 41396356 = 22429^2 + 6434^2 .

It is a cyclic number.

It is not a de Polignac number, because 544456397 - 2¹⁸ = 544194253 is a prime.

It is equal to p_28569584 and since 544456397 and 28569584 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544456337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272228198 + 272228199.

It is an arithmetic number, because the mean of its divisors is an integer number (272228199).

Almost surely, 2^544456397 is an apocalyptic number.

It is an amenable number.

544456397 is a deficient number, since it is larger than the sum of its proper divisors (1).

544456397 is an equidigital number, since it uses as much as digits as its factorization.

544456397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 47.

The square root of 544456397 is about 23333.5894581181. The cubic root of 544456397 is about 816.5592476420.

The spelling of 544456397 in words is "five hundred forty-four million, four hundred fifty-six thousand, three hundred ninety-seven".