8461663 has 6 divisors (see below), whose sum is σ = 9843216. Its totient is φ = 7252812.

The previous prime is 8461657. The next prime is 8461693. The reversal of 8461663 is 3661648.

8461663 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8461663 - 2¹⁷ = 8330591 is a prime.

It is a Duffinian number.

8461663 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8461613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86295 + ... + 86392.

It is an arithmetic number, because the mean of its divisors is an integer number (1640536).

Almost surely, 2^8461663 is an apocalyptic number.

8461663 is a deficient number, since it is larger than the sum of its proper divisors (1381553).

8461663 is a wasteful number, since it uses less digits than its factorization.

8461663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172701 (or 172694 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 8461663 is about 2908.8937759911. The cubic root of 8461663 is about 203.7754722442.

The spelling of 8461663 in words is "eight million, four hundred sixty-one thousand, six hundred sixty-three".