549395 has 16 divisors (see below), whose sum is σ = 822528. Its totient is φ = 342240.

The previous prime is 549391. The next prime is 549403. The reversal of 549395 is 593945.

It is not a de Polignac number, because 549395 - 2² = 549391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (549391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329 + ... + 1098.

It is an arithmetic number, because the mean of its divisors is an integer number (51408).

2⁵⁴⁹³⁹⁵ is an apocalyptic number.

549395 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

549395 is a deficient number, since it is larger than the sum of its proper divisors (273133).

549395 is a wasteful number, since it uses less digits than its factorization.

549395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450.

The product of its digits is 24300, while the sum is 35.

The square root of 549395 is about 741.2118455610. The cubic root of 549395 is about 81.9020742581.

It can be divided in two parts, 54 and 9395, that added together give a palindrome (9449).

The spelling of 549395 in words is "five hundred forty-nine thousand, three hundred ninety-five".