549791 has 8 divisors (see below), whose sum is σ = 605568. Its totient is φ = 495000.

The previous prime is 549767. The next prime is 549817. The reversal of 549791 is 197945.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-549791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549791.

It is not an unprimeable number, because it can be changed into a prime (549701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1496 + ... + 1826.

It is an arithmetic number, because the mean of its divisors is an integer number (75696).

2⁵⁴⁹⁷⁹¹ is an apocalyptic number.

549791 is a deficient number, since it is larger than the sum of its proper divisors (55777).

549791 is a wasteful number, since it uses less digits than its factorization.

549791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493.

The product of its digits is 11340, while the sum is 35.

The square root of 549791 is about 741.4789275495. The cubic root of 549791 is about 81.9217476758.

The spelling of 549791 in words is "five hundred forty-nine thousand, seven hundred ninety-one".