548679493 has 4 divisors (see below), whose sum is σ = 548939340. Its totient is φ = 548419648.

The previous prime is 548679463. The next prime is 548679499. The reversal of 548679493 is 394976845.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 372374209 + 176305284 = 19297^2 + 13278^2 .

It is a cyclic number.

It is not a de Polignac number, because 548679493 - 2¹³ = 548671301 is a prime.

It is a super-4 number, since 4×548679493⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (548679499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126730 + ... + 130987.

It is an arithmetic number, because the mean of its divisors is an integer number (137234835).

Almost surely, 2^548679493 is an apocalyptic number.

It is an amenable number.

548679493 is a deficient number, since it is larger than the sum of its proper divisors (259847).

548679493 is a wasteful number, since it uses less digits than its factorization.

548679493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259846.

The product of its digits is 6531840, while the sum is 55.

The square root of 548679493 is about 23423.9085764951. The cubic root of 548679493 is about 818.6650363595.

The spelling of 548679493 in words is "five hundred forty-eight million, six hundred seventy-nine thousand, four hundred ninety-three".