8726663 has 4 divisors (see below), whose sum is σ = 9520008. Its totient is φ = 7933320.

The previous prime is 8726647. The next prime is 8726671. The reversal of 8726663 is 3666278.

8726663 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.

It is a cyclic number.

It is not a de Polignac number, because 8726663 - 2⁴ = 8726647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8726633) 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, 396656 + ... + 396677.

It is an arithmetic number, because the mean of its divisors is an integer number (2380002).

Almost surely, 2^8726663 is an apocalyptic number.

8726663 is a deficient number, since it is larger than the sum of its proper divisors (793345).

8726663 is a wasteful number, since it uses less digits than its factorization.

8726663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793344.

The product of its digits is 72576, while the sum is 38.

The square root of 8726663 is about 2954.0925848727. The cubic root of 8726663 is about 205.8809048622.

The spelling of 8726663 in words is "eight million, seven hundred twenty-six thousand, six hundred sixty-three".