8521463 has 4 divisors (see below), whose sum is σ = 8554128. Its totient is φ = 8488800.

The previous prime is 8521453. The next prime is 8521501. The reversal of 8521463 is 3641258.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3641258 = 2 ⋅1820629.

It is a cyclic number.

It is not a de Polignac number, because 8521463 - 2²² = 4327159 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 (8521453) 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, 15938 + ... + 16463.

It is an arithmetic number, because the mean of its divisors is an integer number (2138532).

Almost surely, 2^8521463 is an apocalyptic number.

8521463 is a deficient number, since it is larger than the sum of its proper divisors (32665).

8521463 is a wasteful number, since it uses less digits than its factorization.

8521463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32664.

The product of its digits is 5760, while the sum is 29.

The square root of 8521463 is about 2919.1545008786. The cubic root of 8521463 is about 204.2543843726.

The spelling of 8521463 in words is "eight million, five hundred twenty-one thousand, four hundred sixty-three".