8380865 has 4 divisors (see below), whose sum is σ = 10057044. Its totient is φ = 6704688.

The previous prime is 8380861. The next prime is 8380877. The reversal of 8380865 is 5680838.

It is a happy number.

8380865 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5680838 = 2 ⋅2840419.

It can be written as a sum of positive squares in 2 ways, for example, as 2070721 + 6310144 = 1439^2 + 2512^2 .

It is a cyclic number.

It is not a de Polignac number, because 8380865 - 2² = 8380861 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8380861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838082 + ... + 838091.

It is an arithmetic number, because the mean of its divisors is an integer number (2514261).

Almost surely, 2^8380865 is an apocalyptic number.

It is an amenable number.

8380865 is a deficient number, since it is larger than the sum of its proper divisors (1676179).

8380865 is a wasteful number, since it uses less digits than its factorization.

8380865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676178.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 8380865 is about 2894.9723660166. The cubic root of 8380865 is about 203.1247988953.

The spelling of 8380865 in words is "eight million, three hundred eighty thousand, eight hundred sixty-five".