89549 has 4 divisors (see below), whose sum is σ = 90300. Its totient is φ = 88800.

The previous prime is 89533. The next prime is 89561. The reversal of 89549 is 94598.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 42025 + 47524 = 205^2 + 218^2 .

It is a cyclic number.

It is not a de Polignac number, because 89549 - 2⁴ = 89533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89519) 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 3 ways as a sum of consecutive naturals, for example, 152 + ... + 449.

It is an arithmetic number, because the mean of its divisors is an integer number (22575).

2⁸⁹⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

89549 is a deficient number, since it is larger than the sum of its proper divisors (751).

89549 is a wasteful number, since it uses less digits than its factorization.

89549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750.

The product of its digits is 12960, while the sum is 35.

The square root of 89549 is about 299.2473892952. The cubic root of 89549 is about 44.7390660219.

The spelling of 89549 in words is "eighty-nine thousand, five hundred forty-nine".