548320769 has 2 divisors, whose sum is σ = 548320770. Its totient is φ = 548320768.

The previous prime is 548320763. The next prime is 548320781. The reversal of 548320769 is 967023845.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 534534400 + 13786369 = 23120^2 + 3713^2 .

It is a cyclic number.

It is not a de Polignac number, because 548320769 - 2¹² = 548316673 is a prime.

It is a super-2 number, since 2×548320769² = 601311331433502722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (548320763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274160384 + 274160385.

It is an arithmetic number, because the mean of its divisors is an integer number (274160385).

Almost surely, 2^548320769 is an apocalyptic number.

It is an amenable number.

548320769 is a deficient number, since it is larger than the sum of its proper divisors (1).

548320769 is an equidigital number, since it uses as much as digits as its factorization.

548320769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 548320769 is about 23416.2501054289. The cubic root of 548320769 is about 818.4865843825.

The spelling of 548320769 in words is "five hundred forty-eight million, three hundred twenty thousand, seven hundred sixty-nine".