8491463 has 4 divisors (see below), whose sum is σ = 8721000. Its totient is φ = 8261928.

The previous prime is 8491453. The next prime is 8491471. The reversal of 8491463 is 3641948.

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 8491463 - 2⁸ = 8491207 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 (8491453) 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, 114713 + ... + 114786.

It is an arithmetic number, because the mean of its divisors is an integer number (2180250).

Almost surely, 2^8491463 is an apocalyptic number.

8491463 is a deficient number, since it is larger than the sum of its proper divisors (229537).

8491463 is a wasteful number, since it uses less digits than its factorization.

8491463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229536.

The product of its digits is 20736, while the sum is 35.

The square root of 8491463 is about 2914.0114962024. The cubic root of 8491463 is about 204.0144085043.

The spelling of 8491463 in words is "eight million, four hundred ninety-one thousand, four hundred sixty-three".