8981549 has 4 divisors (see below), whose sum is σ = 8992320. Its totient is φ = 8970780.

The previous prime is 8981461. The next prime is 8981563. The reversal of 8981549 is 9451898.

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.

It is a cyclic number.

It is not a de Polignac number, because 8981549 - 2²⁰ = 7932973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8981249) 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, 4019 + ... + 5840.

It is an arithmetic number, because the mean of its divisors is an integer number (2248080).

Almost surely, 2^8981549 is an apocalyptic number.

It is an amenable number.

8981549 is a deficient number, since it is larger than the sum of its proper divisors (10771).

8981549 is an equidigital number, since it uses as much as digits as its factorization.

8981549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10770.

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

The square root of 8981549 is about 2996.9232556073. The cubic root of 8981549 is about 207.8661382903.

The spelling of 8981549 in words is "eight million, nine hundred eighty-one thousand, five hundred forty-nine".