8864865 has 24 divisors (see below), whose sum is σ = 15897960. Its totient is φ = 4564224.

The previous prime is 8864851. The next prime is 8864879. The reversal of 8864865 is 5684688.

It is an interprime number because it is at equal distance from previous prime (8864851) and next prime (8864879).

It can be written as a sum of positive squares in 4 ways, for example, as 97344 + 8767521 = 312^2 + 2961^2 .

It is not a de Polignac number, because 8864865 - 2¹¹ = 8862817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 8864865.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2092 + ... + 4701.

It is an arithmetic number, because the mean of its divisors is an integer number (662415).

Almost surely, 2^8864865 is an apocalyptic number.

It is an amenable number.

8864865 is a deficient number, since it is larger than the sum of its proper divisors (7033095).

8864865 is a wasteful number, since it uses less digits than its factorization.

8864865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6833 (or 6830 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 8864865 is about 2977.3923154331. The cubic root of 8864865 is about 206.9620458314.

The spelling of 8864865 in words is "eight million, eight hundred sixty-four thousand, eight hundred sixty-five".