548894393 has 2 divisors, whose sum is σ = 548894394. Its totient is φ = 548894392.

The previous prime is 548894389. The next prime is 548894407. The reversal of 548894393 is 393498845.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 474019984 + 74874409 = 21772^2 + 8653^2 .

It is a cyclic number.

It is not a de Polignac number, because 548894393 - 2² = 548894389 is a prime.

It is not a weakly prime, because it can be changed into another prime (548894303) 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, 274447196 + 274447197.

It is an arithmetic number, because the mean of its divisors is an integer number (274447197).

Almost surely, 2^548894393 is an apocalyptic number.

It is an amenable number.

548894393 is a deficient number, since it is larger than the sum of its proper divisors (1).

548894393 is an equidigital number, since it uses as much as digits as its factorization.

548894393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 53.

The square root of 548894393 is about 23428.4953208694. The cubic root of 548894393 is about 818.7719039417.

The spelling of 548894393 in words is "five hundred forty-eight million, eight hundred ninety-four thousand, three hundred ninety-three".