548972779 has 4 divisors (see below), whose sum is σ = 551013840. Its totient is φ = 546931720.

The previous prime is 548972777. The next prime is 548972797. The reversal of 548972779 is 977279845.

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

It is a cyclic number.

It is not a de Polignac number, because 548972779 - 2¹ = 548972777 is a prime.

It is a super-3 number, since 3×548972779³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (548972771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1020127 + ... + 1020664.

It is an arithmetic number, because the mean of its divisors is an integer number (137753460).

Almost surely, 2^548972779 is an apocalyptic number.

548972779 is a deficient number, since it is larger than the sum of its proper divisors (2041061).

548972779 is a wasteful number, since it uses less digits than its factorization.

548972779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041060.

The product of its digits is 8890560, while the sum is 58.

The square root of 548972779 is about 23430.1681385346. The cubic root of 548972779 is about 818.8108775587.

The spelling of 548972779 in words is "five hundred forty-eight million, nine hundred seventy-two thousand, seven hundred seventy-nine".