8363665 has 16 divisors (see below), whose sum is σ = 10514448. Its totient is φ = 6379776.

The previous prime is 8363653. The next prime is 8363669. The reversal of 8363665 is 5663638.

8363665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 2892²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 1 + 8363664 = 1^2 + 2892^2 .

It is a cyclic number.

It is not a de Polignac number, because 8363665 - 2⁹ = 8363153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8363669) 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, 9379 + ... + 10231.

It is an arithmetic number, because the mean of its divisors is an integer number (657153).

Almost surely, 2^8363665 is an apocalyptic number.

It is an amenable number.

8363665 is a deficient number, since it is larger than the sum of its proper divisors (2150783).

8363665 is a wasteful number, since it uses less digits than its factorization.

8363665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948.

The product of its digits is 77760, while the sum is 37.

The square root of 8363665 is about 2892.0001728907. Note that the first 3 decimals coincide. The cubic root of 8363665 is about 202.9857464492.

The spelling of 8363665 in words is "eight million, three hundred sixty-three thousand, six hundred sixty-five".