543744769 has 2 divisors, whose sum is σ = 543744770. Its totient is φ = 543744768.

The previous prime is 543744763. The next prime is 543744811. The reversal of 543744769 is 967447345.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 488984769 + 54760000 = 22113^2 + 7400^2 .

It is a cyclic number.

It is not a de Polignac number, because 543744769 - 2⁵ = 543744737 is a prime.

It is a super-2 number, since 2×543744769² = 591316747629726722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (543744763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271872384 + 271872385.

It is an arithmetic number, because the mean of its divisors is an integer number (271872385).

Almost surely, 2^543744769 is an apocalyptic number.

It is an amenable number.

543744769 is a deficient number, since it is larger than the sum of its proper divisors (1).

543744769 is an equidigital number, since it uses as much as digits as its factorization.

543744769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 49.

The square root of 543744769 is about 23318.3354680389. The cubic root of 543744769 is about 816.2033331434.

The spelling of 543744769 in words is "five hundred forty-three million, seven hundred forty-four thousand, seven hundred sixty-nine".