8361663 has 16 divisors (see below), whose sum is σ = 11520096. Its totient is φ = 5391360.

The previous prime is 8361641. The next prime is 8361677. The reversal of 8361663 is 3661638.

It is not a de Polignac number, because 8361663 - 2⁵ = 8361631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8361623) 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, 19095 + ... + 19527.

It is an arithmetic number, because the mean of its divisors is an integer number (720006).

Almost surely, 2^8361663 is an apocalyptic number.

8361663 is a deficient number, since it is larger than the sum of its proper divisors (3158433).

8361663 is a wasteful number, since it uses less digits than its factorization.

8361663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634.

The product of its digits is 15552, while the sum is 33.

The square root of 8361663 is about 2891.6540249484. The cubic root of 8361663 is about 202.9695490089.

The spelling of 8361663 in words is "eight million, three hundred sixty-one thousand, six hundred sixty-three".