10889549 has 4 divisors (see below), whose sum is σ = 11879520. Its totient is φ = 9899580.

The previous prime is 10889521. The next prime is 10889551. The reversal of 10889549 is 94598801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94598801 = 11 ⋅8599891.

It is a cyclic number.

It is not a de Polignac number, because 10889549 - 2¹² = 10885453 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10889509) 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, 494969 + ... + 494990.

It is an arithmetic number, because the mean of its divisors is an integer number (2969880).

Almost surely, 2^10889549 is an apocalyptic number.

It is an amenable number.

10889549 is a deficient number, since it is larger than the sum of its proper divisors (989971).

10889549 is an equidigital number, since it uses as much as digits as its factorization.

10889549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989970.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 10889549 is about 3299.9316659592. The cubic root of 10889549 is about 221.6511375356.

The spelling of 10889549 in words is "ten million, eight hundred eighty-nine thousand, five hundred forty-nine".