8861603 has 4 divisors (see below), whose sum is σ = 8868288. Its totient is φ = 8854920.

The previous prime is 8861597. The next prime is 8861609. The reversal of 8861603 is 3061688.

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 is an interprime number because it is at equal distance from previous prime (8861597) and next prime (8861609).

It is a cyclic number.

It is not a de Polignac number, because 8861603 - 2²⁰ = 7813027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8861603.

It is not an unprimeable number, because it can be changed into a prime (8861609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608 + ... + 4253.

It is an arithmetic number, because the mean of its divisors is an integer number (2217072).

Almost surely, 2^8861603 is an apocalyptic number.

8861603 is a deficient number, since it is larger than the sum of its proper divisors (6685).

8861603 is a wasteful number, since it uses less digits than its factorization.

8861603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6684.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 8861603 is about 2976.8444702403. The cubic root of 8861603 is about 206.9366574765.

The spelling of 8861603 in words is "eight million, eight hundred sixty-one thousand, six hundred three".