549427 has 4 divisors (see below), whose sum is σ = 558496. Its totient is φ = 540360.

The previous prime is 549421. The next prime is 549431. The reversal of 549427 is 724945.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-549427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549421) 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, 4443 + ... + 4564.

It is an arithmetic number, because the mean of its divisors is an integer number (139624).

2⁵⁴⁹⁴²⁷ is an apocalyptic number.

549427 is a deficient number, since it is larger than the sum of its proper divisors (9069).

549427 is an equidigital number, since it uses as much as digits as its factorization.

549427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9068.

The product of its digits is 10080, while the sum is 31.

The square root of 549427 is about 741.2334315180. The cubic root of 549427 is about 81.9036643802.

The spelling of 549427 in words is "five hundred forty-nine thousand, four hundred twenty-seven".