549407 has 4 divisors (see below), whose sum is σ = 551760. Its totient is φ = 547056.

The previous prime is 549403. The next prime is 549421. The reversal of 549407 is 704945.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704945 = 5 ⋅140989.

It is a cyclic number.

It is not a de Polignac number, because 549407 - 2² = 549403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 549407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549403) 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, 782 + ... + 1307.

It is an arithmetic number, because the mean of its divisors is an integer number (137940).

2⁵⁴⁹⁴⁰⁷ is an apocalyptic number.

549407 is a deficient number, since it is larger than the sum of its proper divisors (2353).

549407 is a wasteful number, since it uses less digits than its factorization.

549407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 549407 is about 741.2199403686. The cubic root of 549407 is about 81.9026705611.

The spelling of 549407 in words is "five hundred forty-nine thousand, four hundred seven".