8101663 has 4 divisors (see below), whose sum is σ = 8109648. Its totient is φ = 8093680.

The previous prime is 8101661. The next prime is 8101669. The reversal of 8101663 is 3661018.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8101663 - 2¹ = 8101661 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 (8101661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2203 + ... + 4588.

It is an arithmetic number, because the mean of its divisors is an integer number (2027412).

Almost surely, 2^8101663 is an apocalyptic number.

8101663 is a deficient number, since it is larger than the sum of its proper divisors (7985).

8101663 is a wasteful number, since it uses less digits than its factorization.

8101663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7984.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 8101663 is about 2846.3420384768. The cubic root of 8101663 is about 200.8436281212.

The spelling of 8101663 in words is "eight million, one hundred one thousand, six hundred sixty-three".