8863649 has 4 divisors (see below), whose sum is σ = 8869680. Its totient is φ = 8857620.

The previous prime is 8863643. The next prime is 8863651. The reversal of 8863649 is 9463688.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8863649 - 2¹⁶ = 8798113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8863643) 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, 794 + ... + 4284.

It is an arithmetic number, because the mean of its divisors is an integer number (2217420).

Almost surely, 2^8863649 is an apocalyptic number.

It is an amenable number.

8863649 is a deficient number, since it is larger than the sum of its proper divisors (6031).

8863649 is a wasteful number, since it uses less digits than its factorization.

8863649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6030.

The product of its digits is 248832, while the sum is 44.

The square root of 8863649 is about 2977.1881028917. The cubic root of 8863649 is about 206.9525823538.

Multiplying 8863649 by its sum of digits (44), we get a triangular number (390000556 = T₂₇₉₂₈).

The spelling of 8863649 in words is "eight million, eight hundred sixty-three thousand, six hundred forty-nine".