8813865 has 16 divisors (see below), whose sum is σ = 14164416. Its totient is φ = 4680000.

The previous prime is 8813821. The next prime is 8813867. The reversal of 8813865 is 5683188.

It is a happy number.

8813865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8813865 - 2⁷ = 8813737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8813867) 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, 2595 + ... + 4935.

It is an arithmetic number, because the mean of its divisors is an integer number (885276).

Almost surely, 2^8813865 is an apocalyptic number.

It is an amenable number.

8813865 is a deficient number, since it is larger than the sum of its proper divisors (5350551).

8813865 is a wasteful number, since it uses less digits than its factorization.

8813865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600.

The product of its digits is 46080, while the sum is 39.

The square root of 8813865 is about 2968.8154203318. The cubic root of 8813865 is about 206.5643947092.

Adding to 8813865 its product of digits (46080), we get a triangular number (8859945 = T₄₂₀₉).

The spelling of 8813865 in words is "eight million, eight hundred thirteen thousand, eight hundred sixty-five".