8661463 has 4 divisors (see below), whose sum is σ = 8667360. Its totient is φ = 8655568.

The previous prime is 8661461. The next prime is 8661469. The reversal of 8661463 is 3641668.

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 8661463 - 2¹ = 8661461 is a prime.

It is a Duffinian number.

8661463 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8661461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1218 + ... + 4336.

It is an arithmetic number, because the mean of its divisors is an integer number (2166840).

Almost surely, 2^8661463 is an apocalyptic number.

8661463 is a deficient number, since it is larger than the sum of its proper divisors (5897).

8661463 is a wasteful number, since it uses less digits than its factorization.

8661463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5896.

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

The square root of 8661463 is about 2943.0363572338. The cubic root of 8661463 is about 205.3668861255.

The spelling of 8661463 in words is "eight million, six hundred sixty-one thousand, four hundred sixty-three".