8981603 has 4 divisors (see below), whose sum is σ = 9013848. Its totient is φ = 8949360.

The previous prime is 8981597. The next prime is 8981611. The reversal of 8981603 is 3061898.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8981603 - 2¹⁰ = 8980579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8981633) 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, 15701 + ... + 16262.

It is an arithmetic number, because the mean of its divisors is an integer number (2253462).

Almost surely, 2^8981603 is an apocalyptic number.

8981603 is a deficient number, since it is larger than the sum of its proper divisors (32245).

8981603 is a wasteful number, since it uses less digits than its factorization.

8981603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32244.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 8981603 is about 2996.9322648335. The cubic root of 8981603 is about 207.8665548757.

The spelling of 8981603 in words is "eight million, nine hundred eighty-one thousand, six hundred three".