8663799 has 4 divisors (see below), whose sum is σ = 11551736. Its totient is φ = 5775864.

The previous prime is 8663797. The next prime is 8663803. The reversal of 8663799 is 9973668.

It is a happy number.

8663799 is digitally balanced in base 2, 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.

It is not a de Polignac number, because 8663799 - 2¹ = 8663797 is a prime.

It is a super-2 number, since 2×8663799² = 150122826224802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8663797) 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, 1443964 + ... + 1443969.

It is an arithmetic number, because the mean of its divisors is an integer number (2887934).

Almost surely, 2^8663799 is an apocalyptic number.

8663799 is a deficient number, since it is larger than the sum of its proper divisors (2887937).

8663799 is a wasteful number, since it uses less digits than its factorization.

8663799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2887936.

The product of its digits is 489888, while the sum is 48.

The square root of 8663799 is about 2943.4331995138. The cubic root of 8663799 is about 205.3853469762.

It can be divided in two parts, 86637 and 99, that added together give a triangular number (86736 = T₄₁₆).

The spelling of 8663799 in words is "eight million, six hundred sixty-three thousand, seven hundred ninety-nine".