8865649 has 16 divisors (see below), whose sum is σ = 10080000. Its totient is φ = 7736256.

The previous prime is 8865613. The next prime is 8865683. The reversal of 8865649 is 9465688.

8865649 = 1² + 2² + ... + 298².

8865649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8865649 - 2⁹ = 8865137 is a prime.

It is a Duffinian number.

Its product of digits (414720) is a multiple of the sum of its prime divisors (384).

It is a junction number, because it is equal to n+sod(n) for n = 8865599 and 8865608.

It is not an unprimeable number, because it can be changed into a prime (8865149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44452 + ... + 44650.

It is an arithmetic number, because the mean of its divisors is an integer number (630000).

Almost surely, 2^8865649 is an apocalyptic number.

It is an amenable number.

8865649 is a deficient number, since it is larger than the sum of its proper divisors (1214351).

8865649 is a wasteful number, since it uses less digits than its factorization.

8865649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384.

The product of its digits is 414720, while the sum is 46.

The square root of 8865649 is about 2977.5239713561. The cubic root of 8865649 is about 206.9681468253.

The spelling of 8865649 in words is "eight million, eight hundred sixty-five thousand, six hundred forty-nine".